Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/zdpktgd/ptc/vendor/symfony/validator/Test/ConstraintValidatorTestCase.php:46 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor/symfony/validator/Test/ConstraintValidatorTestCase.php on line 46