<p>sorry for the trouble but i again compiled the same program with c++11 enabled i copied the sample program-// Includes all relevant components of mlpack.<br>
#include <br>
// Convenience.<br>
using namespace mlpack;<br>
int main()<br>
{<br>
  // First, load the data.<br>
  arma::mat data;<br>
  // Use data::Load() which transposes the matrix.<br>
  data::Load("data.csv", data, true);<br>
  // Now compute the covariance.  We assume that the data is already centered.<br>
  // Remember, because the matrix is column-major, the covariance operation is<br>
  // transposed.<br>
  arma::mat cov = data * trans(data) / data.n_cols;<br>
  // Save the output.<br>
  data::Save("cov.csv", cov, true);<br>
}<br>
saved it to a file named a.cpp then compiled with the following command- g++ -std=c++11 a.cpp -o a</p>

<p>and i am using ubuntu 12.04 after executing above command i got following error-<br>
dhanpal@dhanpal-HP-Pavilion-15-Notebook-PC:~$ g++ -std=c++11 a.cpp -o a<br>
/tmp/ccggMbbh.o: In function <code>__static_initialization_and_destruction_0(int, int)':<br>
a.cpp:(.text+0x112f): undefined reference to</code>mlpack::util::CLIDeleter::CLIDeleter()'<br>
a.cpp:(.text+0x113e): undefined reference to <code>mlpack::util::CLIDeleter::~CLIDeleter()'<br>
/tmp/ccggMbbh.o: In function</code>bool mlpack::data::Load(std::string const&amp;, arma::Mat&amp;, bool, bool)':<br>
a.cpp:(.text.<em>ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x6e): undefined reference to <code>mlpack::Timer::Start(std::string const&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x130): undefined reference to</code>mlpack::Timer::Stop(std::string const&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x161): undefined reference to <code>mlpack::Log::Fatal'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x166): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x185): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x192): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (*)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x19e): undefined reference to</code>mlpack::Log::Warn'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x1a3): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x1c2): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x1cf): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (</em>)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x273): undefined reference to <code>mlpack::Log::Warn'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x278): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x297): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x2a4): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (*)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x3df): undefined reference to</code>mlpack::Log::Warn'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x3e4): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x403): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x410): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (</em>)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x960): undefined reference to <code>mlpack::Timer::Stop(std::string const&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x991): undefined reference to</code>mlpack::Log::Fatal'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x996): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x9b5): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x9c2): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x9cf): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (*)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x9db): undefined reference to</code>mlpack::Log::Warn'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x9e0): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x9ff): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xa0c): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xa19): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (*)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xa8e): undefined reference to</code>mlpack::Timer::Stop(std::string const&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xabf): undefined reference to <code>mlpack::Log::Fatal'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xac4): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xae3): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xaf0): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xafd): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (<em>)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb09): undefined reference to <code>mlpack::Log::Warn'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb0e): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb2d): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb3a): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb47): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (</em>)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb64): undefined reference to <code>mlpack::Log::Warn'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb69): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb88): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb9a): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::string&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xba7): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xbb4): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xbc1): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (*)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xbcd): undefined reference to</code>mlpack::Log::Info'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xbd2): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xbf1): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xc03): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::string&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xc10): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xc1d): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (*)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xcba): undefined reference to</code>mlpack::Log::Info'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xcbf): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (*)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xcf8): undefined reference to</code>mlpack::Timer::Stop(std::string const&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd29): undefined reference to <code>mlpack::Log::Fatal'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd2e): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd4d): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd5a): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (*)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd66): undefined reference to</code>mlpack::Log::Warn'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd6b): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd8a): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd97): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (</em>)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xde5): undefined reference to <code>mlpack::Log::Info'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xdea): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xe02): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xe1a): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xe9c): undefined reference to</code>mlpack::Timer::Stop(std::string const&amp;)'<br>
/tmp/ccggMbbh.o: In function <code>bool mlpack::data::Save&lt;double&gt;(std::string const&amp;, arma::Mat&lt;double&gt; const&amp;, bool, bool)':<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x70): undefined reference to</code>mlpack::Timer::Start(std::string const&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xfc): undefined reference to <code>mlpack::Timer::Stop(std::string const&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x12d): undefined reference to</code>mlpack::Log::Fatal'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x132): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x151): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x15e): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x16b): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (*)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x177): undefined reference to</code>mlpack::Log::Warn'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x17c): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x19b): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x1a8): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x1b5): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (*)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x24a): undefined reference to</code>mlpack::Timer::Stop(std::string const&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x27b): undefined reference to <code>mlpack::Log::Fatal'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x280): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x29f): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x2ac): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x2b9): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (<em>)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x2c5): undefined reference to <code>mlpack::Log::Warn'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x2ca): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x2e9): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x2f6): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x303): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (</em>)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x4bc): undefined reference to <code>mlpack::Timer::Stop(std::string const&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x4ed): undefined reference to</code>mlpack::Log::Fatal'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x4f2): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x511): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x51e): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x52b): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (*)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x537): undefined reference to</code>mlpack::Log::Warn'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x53c): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x55b): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x568): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x575): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (*)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x5ea): undefined reference to</code>mlpack::Timer::Stop(std::string const&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x61b): undefined reference to <code>mlpack::Log::Fatal'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x620): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x63f): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x64c): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (*)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x658): undefined reference to</code>mlpack::Log::Warn'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x65d): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x67c): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x689): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (</em>)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x69d): undefined reference to <code>mlpack::Log::Info'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x6a2): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const<em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x6b4): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::string&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x6c1): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x6e0): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x6ed): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (<em>)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x850): undefined reference to <code>mlpack::Timer::Stop(std::string const&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x881): undefined reference to</code>mlpack::Log::Fatal'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x886): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x8a5): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x8b2): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (<em>)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x8be): undefined reference to <code>mlpack::Log::Warn'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x8c3): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x8e2): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x8ef): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (<em>)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x9fc): undefined reference to <code>mlpack::Timer::Stop(std::string const&amp;)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa2d): undefined reference to</code>mlpack::Log::Fatal'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa32): undefined reference to `mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa51): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa5e): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (<em>)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa6a): undefined reference to <code>mlpack::Log::Warn'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa6f): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const</em>)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa8e): undefined reference to <code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(char const*)'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa9b): undefined reference to</code>mlpack::util::PrefixedOutStream::operator&lt;&lt;(std::ostream&amp; (<em>)(std::ostream&amp;))'<br>
a.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xadb): undefined reference to <code>mlpack::Timer::Stop(std::string const&amp;)'<br>
/tmp/ccggMbbh.o: In function</code>double arma::blas::dot(unsigned long long, double const</em>, double const*)':<br>
a.cpp:(.text._ZN4arma4blas3dotIdEET_yPKS2_S4</em>[<em>ZN4arma4blas3dotIdEET_yPKS2_S4</em>]+0x3d): undefined reference to <code>wrapper_ddot_'<br>
/tmp/ccggMbbh.o: In function</code>void arma::blas::gemv(char const<em>, int const</em>, int const<em>, double const</em>, double const<em>, int const</em>, double const<em>, int const</em>, double const<em>, double</em>, int const<em>)':<br>
a.cpp:(.text.<em>ZN4arma4blas4gemvIdEEvPKcPKiS5_PKT_S8_S5_S8_S5_S8_PS6_S5</em>[<em>ZN4arma4blas4gemvIdEEvPKcPKiS5_PKT_S8_S5_S8_S5_S8_PS6_S5</em>]+0x68): undefined reference to <code>wrapper_dgemv_'<br>
/tmp/ccggMbbh.o: In function</code>void arma::blas::gemm(char const</em>, char const<em>, int const</em>, int const<em>, int const</em>, double const<em>, double const</em>, int const<em>, double const</em>, int const<em>, double const</em>, double<em>, int const</em>)':<br>
a.cpp:(.text.<em>ZN4arma4blas4gemmIdEEvPKcS3_PKiS5_S5_PKT_S8_S5_S8_S5_S8_PS6_S5</em>[<em>ZN4arma4blas4gemmIdEEvPKcS3_PKiS5_S5_PKT_S8_S5_S8_S5_S8_PS6_S5</em>]+0x7a): undefined reference to <code>wrapper_dgemm_'<br>
/tmp/ccggMbbh.o: In function</code>void arma::blas::syrk(char const<em>, char const</em>, int const<em>, int const</em>, double const<em>, double const</em>, int const<em>, double const</em>, double<em>, int const</em>)':<br>
a.cpp:(.text.<em>ZN4arma4blas4syrkIdEEvPKcS3_PKiS5_PKT_S8_S5_S8_PS6_S5</em>[<em>ZN4arma4blas4syrkIdEEvPKcS3_PKiS5_PKT_S8_S5_S8_PS6_S5</em>]+0x5f): undefined reference to `wrapper_dsyrk_'<br>
collect2: error: ld returned 1 exit status<br>
i am unable to figure out what is this please help</p>

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<script type="application/json" data-scope="inboxmarkup">{"api_version":"1.0","publisher":{"api_key":"05dde50f1d1a384dd78767c55493e4bb","name":"GitHub"},"entity":{"external_key":"github/mlpack/mlpack","title":"mlpack/mlpack","subtitle":"GitHub repository","main_image_url":"https://cloud.githubusercontent.com/assets/143418/17495839/a5054eac-5d88-11e6-95fc-7290892c7bb5.png","avatar_image_url":"https://cloud.githubusercontent.com/assets/143418/15842166/7c72db34-2c0b-11e6-9aed-b52498112777.png","action":{"name":"Open in GitHub","url":"https://github.com/mlpack/mlpack"}},"updates":{"snippets":[{"icon":"PERSON","message":"@hunk3749 in #781: sorry for the trouble but i again compiled the same program with c++11 enabled i copied the sample program-// Includes all relevant components of mlpack.\r\n#include \u003cmlpack/core.hpp\u003e\r\n// Convenience.\r\nusing namespace mlpack;\r\nint main()\r\n{\r\n  // First, load the data.\r\n  arma::mat data;\r\n  // Use data::Load() which transposes the matrix.\r\n  data::Load(\"data.csv\", data, true);\r\n  // Now compute the covariance.  We assume that the data is already centered.\r\n  // Remember, because the matrix is column-major, the covariance operation is\r\n  // transposed.\r\n  arma::mat cov = data * trans(data) / data.n_cols;\r\n  // Save the output.\r\n  data::Save(\"cov.csv\", cov, true);\r\n}\r\nsaved it to a file named a.cpp then compiled with the following command- g++ -std=c++11 a.cpp -o a\r\n\r\nand i am using ubuntu 12.04 after executing above command i got following error-\r\ndhanpal@dhanpal-HP-Pavilion-15-Notebook-PC:~$ g++ -std=c++11 a.cpp -o a\r\n/tmp/ccggMbbh.o: In function `__static_initialization_and_destruction_0(int, int)':\r\na.cpp:(.text+0x112f): undefined reference to `mlpack::util::CLIDeleter::CLIDeleter()'\r\na.cpp:(.text+0x113e): undefined reference to `mlpack::util::CLIDeleter::~CLIDeleter()'\r\n/tmp/ccggMbbh.o: In function `bool mlpack::data::Load\u003cdouble\u003e(std::string const\u0026, arma::Mat\u003cdouble\u003e\u0026, bool, bool)':\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x6e): undefined reference to `mlpack::Timer::Start(std::string const\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x130): undefined reference to `mlpack::Timer::Stop(std::string const\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x161): undefined reference to `mlpack::Log::Fatal'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x166): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x185): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x192): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x19e): undefined reference to `mlpack::Log::Warn'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x1a3): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x1c2): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x1cf): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x273): undefined reference to `mlpack::Log::Warn'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x278): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x297): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x2a4): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x3df): undefined reference to `mlpack::Log::Warn'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x3e4): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x403): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x410): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x960): undefined reference to `mlpack::Timer::Stop(std::string const\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x991): undefined reference to `mlpack::Log::Fatal'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x996): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x9b5): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x9c2): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x9cf): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x9db): undefined reference to `mlpack::Log::Warn'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x9e0): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0x9ff): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xa0c): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xa19): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xa8e): undefined reference to `mlpack::Timer::Stop(std::string const\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xabf): undefined reference to `mlpack::Log::Fatal'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xac4): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xae3): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xaf0): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xafd): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb09): undefined reference to `mlpack::Log::Warn'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb0e): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb2d): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb3a): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb47): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb64): undefined reference to `mlpack::Log::Warn'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb69): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb88): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xb9a): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::string\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xba7): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xbb4): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xbc1): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xbcd): undefined reference to `mlpack::Log::Info'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xbd2): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xbf1): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xc03): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::string\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xc10): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xc1d): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xcba): undefined reference to `mlpack::Log::Info'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xcbf): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xcf8): undefined reference to `mlpack::Timer::Stop(std::string const\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd29): undefined reference to `mlpack::Log::Fatal'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd2e): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd4d): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd5a): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd66): undefined reference to `mlpack::Log::Warn'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd6b): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd8a): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xd97): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xde5): undefined reference to `mlpack::Log::Info'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xdea): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xe02): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xe1a): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb[_ZN6mlpack4data4LoadIdEEbRKSsRN4arma3MatIT_EEbb]+0xe9c): undefined reference to `mlpack::Timer::Stop(std::string const\u0026)'\r\n/tmp/ccggMbbh.o: In function `bool mlpack::data::Save\u003cdouble\u003e(std::string const\u0026, arma::Mat\u003cdouble\u003e const\u0026, bool, bool)':\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x70): undefined reference to `mlpack::Timer::Start(std::string const\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xfc): undefined reference to `mlpack::Timer::Stop(std::string const\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x12d): undefined reference to `mlpack::Log::Fatal'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x132): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x151): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x15e): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x16b): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x177): undefined reference to `mlpack::Log::Warn'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x17c): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x19b): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x1a8): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x1b5): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x24a): undefined reference to `mlpack::Timer::Stop(std::string const\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x27b): undefined reference to `mlpack::Log::Fatal'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x280): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x29f): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x2ac): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x2b9): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x2c5): undefined reference to `mlpack::Log::Warn'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x2ca): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x2e9): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x2f6): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x303): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x4bc): undefined reference to `mlpack::Timer::Stop(std::string const\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x4ed): undefined reference to `mlpack::Log::Fatal'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x4f2): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x511): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x51e): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x52b): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x537): undefined reference to `mlpack::Log::Warn'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x53c): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x55b): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x568): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x575): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x5ea): undefined reference to `mlpack::Timer::Stop(std::string const\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x61b): undefined reference to `mlpack::Log::Fatal'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x620): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x63f): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x64c): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x658): undefined reference to `mlpack::Log::Warn'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x65d): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x67c): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x689): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x69d): undefined reference to `mlpack::Log::Info'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x6a2): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x6b4): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::string\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x6c1): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x6e0): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x6ed): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x850): undefined reference to `mlpack::Timer::Stop(std::string const\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x881): undefined reference to `mlpack::Log::Fatal'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x886): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x8a5): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x8b2): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x8be): undefined reference to `mlpack::Log::Warn'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x8c3): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x8e2): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x8ef): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0x9fc): undefined reference to `mlpack::Timer::Stop(std::string const\u0026)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa2d): undefined reference to `mlpack::Log::Fatal'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa32): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa51): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa5e): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa6a): undefined reference to `mlpack::Log::Warn'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa6f): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa8e): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(char const*)'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xa9b): undefined reference to `mlpack::util::PrefixedOutStream::operator\u003c\u003c(std::ostream\u0026 (*)(std::ostream\u0026))'\r\na.cpp:(.text._ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb[_ZN6mlpack4data4SaveIdEEbRKSsRKN4arma3MatIT_EEbb]+0xadb): undefined reference to `mlpack::Timer::Stop(std::string const\u0026)'\r\n/tmp/ccggMbbh.o: In function `double arma::blas::dot\u003cdouble\u003e(unsigned long long, double const*, double const*)':\r\na.cpp:(.text._ZN4arma4blas3dotIdEET_yPKS2_S4_[_ZN4arma4blas3dotIdEET_yPKS2_S4_]+0x3d): undefined reference to `wrapper_ddot_'\r\n/tmp/ccggMbbh.o: In function `void arma::blas::gemv\u003cdouble\u003e(char const*, int const*, int const*, double const*, double const*, int const*, double const*, int const*, double const*, double*, int const*)':\r\na.cpp:(.text._ZN4arma4blas4gemvIdEEvPKcPKiS5_PKT_S8_S5_S8_S5_S8_PS6_S5_[_ZN4arma4blas4gemvIdEEvPKcPKiS5_PKT_S8_S5_S8_S5_S8_PS6_S5_]+0x68): undefined reference to `wrapper_dgemv_'\r\n/tmp/ccggMbbh.o: In function `void arma::blas::gemm\u003cdouble\u003e(char const*, char const*, int const*, int const*, int const*, double const*, double const*, int const*, double const*, int const*, double const*, double*, int const*)':\r\na.cpp:(.text._ZN4arma4blas4gemmIdEEvPKcS3_PKiS5_S5_PKT_S8_S5_S8_S5_S8_PS6_S5_[_ZN4arma4blas4gemmIdEEvPKcS3_PKiS5_S5_PKT_S8_S5_S8_S5_S8_PS6_S5_]+0x7a): undefined reference to `wrapper_dgemm_'\r\n/tmp/ccggMbbh.o: In function `void arma::blas::syrk\u003cdouble\u003e(char const*, char const*, int const*, int const*, double const*, double const*, int const*, double const*, double*, int const*)':\r\na.cpp:(.text._ZN4arma4blas4syrkIdEEvPKcS3_PKiS5_PKT_S8_S5_S8_PS6_S5_[_ZN4arma4blas4syrkIdEEvPKcS3_PKiS5_PKT_S8_S5_S8_PS6_S5_]+0x5f): undefined reference to `wrapper_dsyrk_'\r\ncollect2: error: ld returned 1 exit status\r\ni am unable to figure out what is this please help\r\n"}],"action":{"name":"View Issue","url":"https://github.com/mlpack/mlpack/issues/781#issuecomment-245166981"}}}</script>