<p>thx， I‘ve found the reason made this warn, and another little stuff:<br>
./mlpack_det<br>
terminate called after throwing an instance of 'std::runtime_error'<br>
  what():  fatal error; see Log::Fatal output<br>
Aborted (core dumped)</p>

<p>If No arguments applied, I think help info should be show, boost::program_options support this util<br>
, cause <code>Aborted</code> if not very friendly :)</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">&mdash;<br />You are receiving this because you are subscribed to this thread.<br />Reply to this email directly or <a href="https://github.com/mlpack/mlpack/issues/598#issuecomment-206281867">view it on GitHub</a><img alt="" height="1" src="https://github.com/notifications/beacon/AJ4bFO55IYkj6neoJTEnIo5RgtO5hTb4ks5p04XdgaJpZM4H6kZm.gif" width="1" /></p>
<div itemscope itemtype="http://schema.org/EmailMessage">
<div itemprop="action" itemscope itemtype="http://schema.org/ViewAction">
  <link itemprop="url" href="https://github.com/mlpack/mlpack/issues/598#issuecomment-206281867"></link>
  <meta itemprop="name" content="View Issue"></meta>
</div>
<meta itemprop="description" content="View this Issue on GitHub"></meta>
</div>