Fatal error: Uncaught Error: Class 'Symfony\Component\Validator\ConstraintValidator' not found in /users/maximus/www/storage/vendor/symfony/validator/Tests/Fixtures/ConstraintAValidator.php:18 Stack trace: #0 {main} thrown in /users/maximus/www/storage/vendor/symfony/validator/Tests/Fixtures/ConstraintAValidator.php on line 18