Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in C:\xampp\htdocs\BK\bateriasec\vendor\friendsofsymfony\user-bundle\EventListener\FlashListener.php:24 Stack trace: #0 {main} thrown in C:\xampp\htdocs\BK\bateriasec\vendor\friendsofsymfony\user-bundle\EventListener\FlashListener.php on line 24