Fatal error: Uncaught Error: Class "Doctrine\Persistence\Event\ManagerEventArgs" not found in D:\xampp\htdocs\pimcore\my-project\vendor\doctrine\orm\src\Event\PreFlushEventArgs.php:17 Stack trace: #0 {main} thrown in D:\xampp\htdocs\pimcore\my-project\vendor\doctrine\orm\src\Event\PreFlushEventArgs.php on line 17