Fatal error: Uncaught Error: Class "Doctrine\Persistence\Event\ManagerEventArgs" not found in I:\www\picman\vendor\doctrine\orm\src\Event\OnClassMetadataNotFoundEventArgs.php:20 Stack trace: #0 {main} thrown in I:\www\picman\vendor\doctrine\orm\src\Event\OnClassMetadataNotFoundEventArgs.php on line 20