Fatal error: Uncaught Error: Class "Orchestra\Testbench\TestCase" not found in C:\xampp\htdocs\r10csm\vendor\laravel\framework\tests\Integration\Foundation\ExceptionHandlerTest.php:14 Stack trace: #0 {main} thrown in C:\xampp\htdocs\r10csm\vendor\laravel\framework\tests\Integration\Foundation\ExceptionHandlerTest.php on line 14