Fatal error: Uncaught Error: Class "Doctrine\Common\Persistence\Event\ManagerEventArgs" not found in /home/projetwewv/www/licence00/symfony/vendor/doctrine/orm/lib/Doctrine/ORM/Event/OnClassMetadataNotFoundEventArgs.php:35 Stack trace: #0 {main} thrown in /home/projetwewv/www/licence00/symfony/vendor/doctrine/orm/lib/Doctrine/ORM/Event/OnClassMetadataNotFoundEventArgs.php on line 35