While deploying my Symfony2 application to a shared webhosting platform, I noticed that on random requests, the webapplication returns a status code 500.
When looking in the logs, the application complains about an invalid mapping file:
request.CRITICAL: Exception thrown when handling an exception (Doctrine\Common\Persistence\Mapping\MappingException: Invalid mapping file 'FOS.UserBundle.Model.User.orm.xml' for class 'FOS\UserBundle\Model\User'.
I can't seem to fix this problem, it doesn't happen on each request.