<p dir="auto">The customize feature (<a href="http://twitter.github.io/bootstrap/customize.html" rel="nofollow">http://twitter.github.io/bootstrap/customize.html</a>) seems to be broken. I tried a few different configurations (even the default) and received the following in an error.txt:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="A less error occured trying to build your bundle. You've likely entered an invalid input into the less variable field. Check your syntax and try again!

 thanks!

{&quot;type&quot;:&quot;Parse&quot;,&quot;message&quot;:&quot;Syntax Error on line 1&quot;,&quot;index&quot;:0,&quot;filename&quot;:&quot;bootstrap.css&quot;,&quot;line&quot;:1,&quot;column&quot;:0,&quot;extract&quot;:[null,&quot;&lt;!DOCTYPE html&gt;&quot;,&quot;&lt;!--&quot;]}"><pre class="notranslate"><code class="notranslate">A less error occured trying to build your bundle. You've likely entered an invalid input into the less variable field. Check your syntax and try again!

 thanks!

{"type":"Parse","message":"Syntax Error on line 1","index":0,"filename":"bootstrap.css","line":1,"column":0,"extract":[null,"&lt;!DOCTYPE html&gt;","&lt;!--"]}
</code></pre></div>
<p dir="auto">Tried to download a customised setup but css files are empty once downloaded, the same is true for IE,Safari,FireFox and Chrome. Received a error file with the downloaded zip, message as follows:</p>
<p dir="auto">A less error occured trying to build your bundle. You've likely entered an invalid input into the less variable field. Check your syntax and try again!<br>
thanks!<br>
{"type":"Parse","message":"Syntax Error on line 1","index":0,"filename":"bootstrap.css","line":1,"column":0,"extract":[null,"","&lt;!--"]}</p>
<p dir="auto">Thanks</p>