Fatal error: Uncaught Error: Class "Symfony\Component\Validator\Constraint" not found in /home/tubu/public_html/Opigno_D9v03old/opignoD9/vendor/symfony/validator/Constraints/Unique.php:22 Stack trace: #0 {main} thrown in /home/tubu/public_html/Opigno_D9v03old/opignoD9/vendor/symfony/validator/Constraints/Unique.php on line 22