Fatal error: Uncaught Error: Class "App\Http\Controllers\AbstractController" not found in C:\PHP\APPS\production\aictec_license_web\app\Http\Controllers\Operator\ConfigurationGroupController.php:11 Stack trace: #0 {main} thrown in C:\PHP\APPS\production\aictec_license_web\app\Http\Controllers\Operator\ConfigurationGroupController.php on line 11