Fatal error: Uncaught Error: Class "Symfony\Component\Validator\Constraints\Composite" not found in /home/marcgron/www/SSA/v2/vendor/symfony/validator/Constraints/All.php:24 Stack trace: #0 {main} thrown in /home/marcgron/www/SSA/v2/vendor/symfony/validator/Constraints/All.php on line 24