Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in C:\xampp\htdocs\slip\Warranty-UploadFile\vendor\symfony\http-kernel\EventListener\AbstractSessionListener.php:39 Stack trace: #0 {main} thrown in C:\xampp\htdocs\slip\Warranty-UploadFile\vendor\symfony\http-kernel\EventListener\AbstractSessionListener.php on line 39