Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in D:\xampp\htdocs\_test\ivvr-web-app\app\Http\Controllers\complain\ComplainController.php:13 Stack trace: #0 {main} thrown in D:\xampp\htdocs\_test\ivvr-web-app\app\Http\Controllers\complain\ComplainController.php on line 13