Fatal error: Uncaught Error: Interface "Symfony\Component\EventDispatcher\EventSubscriberInterface" not found in /home/recabarr/appl_tracking/src/EventSubscriber/AjaxAuthenticationSubscriber.php:22 Stack trace: #0 {main} thrown in /home/recabarr/appl_tracking/src/EventSubscriber/AjaxAuthenticationSubscriber.php on line 22