Fatal error: Uncaught Error: Interface "Doctrine\Common\EventListenerIntrospector" not found in D:\xampp\htdocs\pimcore\my-project\vendor\doctrine\event-manager\src\EventManagerInterface.php:8 Stack trace: #0 {main} thrown in D:\xampp\htdocs\pimcore\my-project\vendor\doctrine\event-manager\src\EventManagerInterface.php on line 8