Fatal error: Uncaught Error: Class "PHPUnit\Framework\Constraint\Constraint" not found in C:\xampp\htdocs\Yeni klasör\yumu_bc\vendor\phpunit\phpunit\src\Framework\MockObject\Runtime\MethodNameConstraint.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\Yeni klasör\yumu_bc\vendor\phpunit\phpunit\src\Framework\MockObject\Runtime\MethodNameConstraint.php on line 21