title: Symfony assetic dumps contents in console
body: <p>When I run</p>
  
  <pre><code>php app/console assetic:dump
  </code></pre>
  
  <p>The contents of the files are dumped in the console and the files are not generated.</p>
  
  <p>This happens with <code>--env=prod</code> and/or <code>--no-debug</code>. Being Windows, I cannot get to the top to see if there is even an error. Never had this before, what could it be?</p>
  
  <p>PS: I'm using <code>"symfony/assetic-bundle": "2.1.*"</code></p>