Fatal error: Uncaught Error: Class 'Illuminate\Routing\Controller' not found in E:\xampp\htdocs\www\yunwei\qr250\vendor\dcat\laravel-admin\tests\Controllers\DropdownController.php:12 Stack trace: #0 {main} thrown in E:\xampp\htdocs\www\yunwei\qr250\vendor\dcat\laravel-admin\tests\Controllers\DropdownController.php on line 12