Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in C:\xampp\htdocs\londoncityroom\app\Http\Controllers\admin\Google\OAuth2CallbackController.php:19 Stack trace: #0 {main} thrown in C:\xampp\htdocs\londoncityroom\app\Http\Controllers\admin\Google\OAuth2CallbackController.php on line 19