Fatal error: Uncaught Error: Class "Doctrine\Persistence\Event\LifecycleEventArgs" not found in C:\xampp\htdocs\addfirst\vendor\doctrine\persistence\src\Persistence\Event\PreUpdateEventArgs.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\addfirst\vendor\doctrine\persistence\src\Persistence\Event\PreUpdateEventArgs.php on line 18