Fatal error: Uncaught Error: Class "Symfony\Component\Validator\Constraint" not found in C:\laragon\www\newProject.SymfonyUser\vendor\symfony\validator\Constraints\CardScheme.php:26 Stack trace: #0 {main} thrown in C:\laragon\www\newProject.SymfonyUser\vendor\symfony\validator\Constraints\CardScheme.php on line 26