Fatal error: Uncaught Error: Class "Mockery\Adapter\Phpunit\MockeryTestCase" not found in D:\xampp\htdocs\SSWPOS\vendor\ramsey\collection\tests\TestCase.php:11 Stack trace: #0 {main} thrown in D:\xampp\htdocs\SSWPOS\vendor\ramsey\collection\tests\TestCase.php on line 11