Fatal error: Uncaught Error: Class "Orchestra\Testbench\TestCase" not found in /opt/lampp/htdocs/myhospitalnow/mhn-admin-ms/vendor/laravel/ui/tests/AuthBackend/AuthenticatesUsersTest.php:21 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/mhn-admin-ms/vendor/laravel/ui/tests/AuthBackend/AuthenticatesUsersTest.php on line 21