<p dir="auto"><a href="http://getbootstrap.com/customize/" rel="nofollow">http://getbootstrap.com/customize/</a></p>
<p dir="auto">I have this error while compilating a custom packet</p>
<div class="highlight highlight-source-css notranslate position-relative overflow-auto" dir="auto" data-snippet-clipboard-copy-content="
Ruh roh! Could not parse less files.
.btn-group-xs &gt; .btn { .btn-xs(); }
.btn-group-sm &gt; .btn { .btn-sm(); }"><pre class="notranslate"><span class="pl-ent">Ruh</span> <span class="pl-ent">roh</span>! <span class="pl-ent">Could</span> <span class="pl-ent">not</span> <span class="pl-ent">parse</span> <span class="pl-ent">less</span> <span class="pl-ent">files</span>.<span class="pl-c1"></span>
.<span class="pl-c1">btn-group-xs</span> <span class="pl-c1">&gt;</span> .<span class="pl-c1">btn</span> { .<span class="pl-c1">btn-xs</span>(); }
.<span class="pl-c1">btn-group-sm</span> <span class="pl-c1">&gt;</span> .<span class="pl-c1">btn</span> { .<span class="pl-c1">btn-sm</span>(); }</pre></div>
<p dir="auto">I try to create packet with only:</p>
<blockquote>
<p dir="auto">Grid system, Forms, Button groups, Input groups, Labels, Alerts</p>
</blockquote>
<p dir="auto">Could not parse less files.<br>
.btn-group-xs &gt; .btn { .btn-xs(); }<br>
.btn-group-sm &gt; .btn { .btn-sm(); }</p>