Fatal error: Uncaught Error: Class 'App\Http\Controllers\Controller' not found in C:\xampp\htdocs\laravel-firebird-update\app\Http\Controllers\Auth\RegisterController.php:12 Stack trace: #0 {main} thrown in C:\xampp\htdocs\laravel-firebird-update\app\Http\Controllers\Auth\RegisterController.php on line 12