Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in C:\Apache24\htdocs\kpiproject\vendor\symfony\http-kernel\EventListener\ErrorListener.php:30 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\kpiproject\vendor\symfony\http-kernel\EventListener\ErrorListener.php on line 30