Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in C:\Apache24\htdocs\cw\vendor\symfony\http-kernel\EventListener\DebugHandlersListener.php:34 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cw\vendor\symfony\http-kernel\EventListener\DebugHandlersListener.php on line 34