is not a valid entity or mapped class Error-Collection of common programming errors

I’m using Doctrine with Codeigniter. So i write a library class for using them together. But i cant access entities (after creating them from db with reverse-engineering). Doctrine gives error: Fatal error: Uncaught exception ‘Doctrine\ORM\Mapping\MappingException’ with message ‘Class Actions is not a valid entity or mapped super class.’

I just add this code for this situation to library class and works everything right but speed is very low:

    $this->em->getConfiguration()
             ->setMetadataDriverImpl(
                new DatabaseDriver(
                        $this->em->getConnection()->getSchemaManager()
                )
    );

What can i do for this error? I generated entities from DB with this function:

    $cmf = new DisconnectedClassMetadataFactory();
    $cmf->setEntityManager($this->em);
    $metadata = $cmf->getAllMetadata();
    $generator = new EntityGenerator();

    $generator->setUpdateEntityIfExists(true);
    $generator->setGenerateStubMethods(true);
    $generator->setGenerateAnnotations(true);
    $generator->generate($metadata, APPPATH."models/entities");

My Action entity:

1. Solution is editing php.ini file for closing eAccelerator:

   eaccelerator.enable="0"
   

Originally posted 2013-11-27 12:01:00.