Fatal error: Uncaught Error: Class "Symfony\Component\Validator\ConstraintValidator" not found in /home/projetwewv/www/licence00/monapp/vendor/symfony/validator/Constraints/CardSchemeValidator.php:27 Stack trace: #0 {main} thrown in /home/projetwewv/www/licence00/monapp/vendor/symfony/validator/Constraints/CardSchemeValidator.php on line 27