Fatal error: Uncaught Error: Class 'Symfony\Component\Security\Core\Event\AuthenticationEvent' not found in C:\xampp\htdocs\plugins\Symfony\Component\Security\Core\Event\AuthenticationSuccessEvent.php:14
Stack trace:
#0 {main}
thrown in C:\xampp\htdocs\plugins\Symfony\Component\Security\Core\Event\AuthenticationSuccessEvent.php on line 14