Fatal error: Uncaught Error: Interface "Symfony\Component\Validator\Validator\ContextualValidatorInterface" not found in I:\www\frameworks\Symfony\doctrine\vendor\symfony\validator\Validator\RecursiveContextualValidator.php:44 Stack trace: #0 {main} thrown in I:\www\frameworks\Symfony\doctrine\vendor\symfony\validator\Validator\RecursiveContextualValidator.php on line 44