Fatal error: Uncaught Error: Interface "Symfony\Component\Validator\Validator\ValidatorInterface" not found in C:\Apache24\htdocs\cms_upgrade\vendor\symfony\validator\Validator\RecursiveValidator.php:25 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cms_upgrade\vendor\symfony\validator\Validator\RecursiveValidator.php on line 25