title: Permission Denied in assetic with less
body: <p>I'm getting odd permission issues when trying to use assetic with LESS. When I try to view the output page, I get:</p>
  
  <pre><code>/*
  [exception] 500 | Internal Server Error | Assetic\Exception\FilterException
  [message] An error occurred while running:
  &amp;#039;&amp;#039; &amp;#039;/tmp/assetic_lessdbtWog&amp;#039;
  
  Error Output:
  sh: 1: : Permission denied
  
  
  Input:
  @import &amp;quot;../../../bundles/orkestraapplication/css/src/less/application.less&amp;quot;;
  
  @images-path: &amp;quot;../../../bundles/orkestraapplication/img&amp;quot;;
  
  .table-striped &amp;gt; tbody &amp;gt; tr.admin-appointment &amp;gt; td  {
    background-color: #FFEBBD;
  }
  </code></pre>
  
  <p>The thing is, I'm unable to figure out what file's permissions it thinks are wrong. I've even tried a</p>
  
  <pre><code>chmod 777 * -R 
  </code></pre>
  
  <p>on the entire app folder, and that doesn't help.</p>