<p>The problem with appveyor is similar to this one: <a href="https://github.com/mlpack/mlpack/issues/476" class="issue-link js-issue-link" data-url="https://github.com/mlpack/mlpack/issues/476" data-id="117939423" data-error-text="Failed to load issue title" data-permission-text="Issue title is private">#476</a><br>
When defining "NSType".</p>

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