Fatal error: Uncaught Error: Class "Hamcrest\Core\SampleBaseClass" not found in C:\xampp\htdocs\m-admin\vendor\hamcrest\hamcrest-php\tests\Hamcrest\Core\SampleSubClass.php:4 Stack trace: #0 {main} thrown in C:\xampp\htdocs\m-admin\vendor\hamcrest\hamcrest-php\tests\Hamcrest\Core\SampleSubClass.php on line 4