title: Doctrine mapping a class that doesn't exist
body: <p>I just re-installed Symfony2 and Doctrine.
  It's brand new.</p>
  
  <p>Now I generate an entity (called account), put some simple annotation and then want to update my schema. And then:</p>
  
  <pre><code> [Doctrine\Common\Persistence\Mapping\MappingException]               
   Class 'NRtworks\ChartOfAccountsBundle\Entity\Nathan' does not exist
  </code></pre>
  
  <p>But I don't have no class called Nathan (ok it's my firstname).Not anywhere in any bundle I currently have. I've had one like that but in another Symfony2 install. </p>
  
  <p>Now when I create one entity named "Nathan" it works, but then it creates a schema that is not related.</p>
  
  <p>Now my question is where doctrine can store "ghosts" entities ? I have tried to clear all the caches of doctrine &amp; Symfony2 but it does not change anything.</p>