Doctrine2 - “class” is not a valid entity or mapped super class

Question

I get exception Uncaught exception \'Doctrine\\ORM\\Mapping\\MappingException\' with message \'Class \"Users\" is not a valid entity or mapped super class every

Answer 1

Following to Ocramius's answer (which saved me as well)

If you've got some custom namespacing on your Entities make sure that the annotations come after the namespace decleration, here is my Entity that worked:

Then in my controller:

   $entityManager->find('App\Models\Books', 1)

Success!