Fatal error: Uncaught Error: Class "Orchestra\Testbench\TestCase" not found in C:\xampp\htdocs\adminlte3\vendor\laravel\ui\tests\AuthBackend\RegistersUsersTest.php:17
Stack trace:
#0 {main}
thrown in C:\xampp\htdocs\adminlte3\vendor\laravel\ui\tests\AuthBackend\RegistersUsersTest.php on line 17