title: Symfony 2.1 + composer + apc
body: <p>When I used composer command "install" or "upload", I had fatal errors such as : </p>
  
  <blockquote>
    <p>PHP Fatal error:  include(): Cannot redeclare class...</p>
  </blockquote>
  
  <p>I solved the problem by changing in my apc.ini (or in your php.ini) :</p>
  
  <pre><code>apc.enable_cli = 1
  </code></pre>
  
  <p>to</p>
  
  <pre><code>apc.enable_cli = 0
  </code></pre>
  
  <p>I hope this helps you</p>