Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in D:\xampp\htdocs\_live\ivvr-complain-app\app\Http\Controllers\Complain\ComplainController.php:12 Stack trace: #0 {main} thrown in D:\xampp\htdocs\_live\ivvr-complain-app\app\Http\Controllers\Complain\ComplainController.php on line 12