Fatal error: Uncaught Error: Class "Symfony\Component\Validator\ConstraintValidator" not found in D:\htdocs\SuiteCRM\core\backend\MediaObjects\Validator\UploadValidator\UploadConstraintValidator.php:36 Stack trace: #0 {main} thrown in D:\htdocs\SuiteCRM\core\backend\MediaObjects\Validator\UploadValidator\UploadConstraintValidator.php on line 36