Fatal error: Uncaught Error: Class "Doctrine\Common\EventArgs" not found in C:\xampp\htdocs\retrodex\helpdesk\vendor\doctrine\persistence\src\Persistence\Event\ManagerEventArgs.php:15 Stack trace: #0 {main} thrown in C:\xampp\htdocs\retrodex\helpdesk\vendor\doctrine\persistence\src\Persistence\Event\ManagerEventArgs.php on line 15