Fatal error: Uncaught Error: Class "Symfony\Component\Validator\Test\ConstraintValidatorTestCase" not found in C:\laragon\www\time\tests\Validator\Constraints\DateTimeFormatValidatorTest.php:23 Stack trace: #0 {main} thrown in C:\laragon\www\time\tests\Validator\Constraints\DateTimeFormatValidatorTest.php on line 23