Fatal error: Uncaught Error: Class 'Symfony\Component\Validator\ConstraintValidator' not found in /home/devilinf/maitres-couvreurs.fr/web_pool/marne-vitry-le-francois/vendor/symfony/form/Extension/Validator/Constraints/FormValidator.php:25 Stack trace: #0 {main} thrown in /home/devilinf/maitres-couvreurs.fr/web_pool/marne-vitry-le-francois/vendor/symfony/form/Extension/Validator/Constraints/FormValidator.php on line 25