Fatal error: Uncaught Error: Class 'Sonata\CoreBundle\Model\BaseEntityManager' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/user-bundle/Entity/UserManagerProxy.php:23 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/user-bundle/Entity/UserManagerProxy.php on line 23