Fatal error: Uncaught Error: Class 'Symfony\Component\Validator\Constraint' not found in /home/roahcom/public_html/storage/vendor/symfony/validator/Tests/Fixtures/ConstraintA.php:17 Stack trace: #0 {main} thrown in /home/roahcom/public_html/storage/vendor/symfony/validator/Tests/Fixtures/ConstraintA.php on line 17