Fatal error: Uncaught Error: Interface "Symfony\Component\Validator\ConstraintViolationListInterface" not found in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\validator\ConstraintViolationList.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\validator\ConstraintViolationList.php on line 21