Fatal error: Uncaught Error: Class "Symfony\Component\Form\FormEvent" not found in /home/projetwewv/www/licence00/20220316/test/vendor/symfony/form/Event/SubmitEvent.php:22 Stack trace: #0 {main} thrown in /home/projetwewv/www/licence00/20220316/test/vendor/symfony/form/Event/SubmitEvent.php on line 22