Fatal error: Uncaught Error: Class "Symfony\Component\Validator\Constraint" not found in /home/pataplou/www/patrick/pataplouf/vendor/symfony/validator/Constraints/Url.php:24 Stack trace: #0 {main} thrown in /home/pataplou/www/patrick/pataplouf/vendor/symfony/validator/Constraints/Url.php on line 24