Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in D:\Apache24\www\xyx_mes\back\backstage-of-xinyaxuan-mes\app\Http\Controllers\TestController.php:8 Stack trace: #0 {main} thrown in D:\Apache24\www\xyx_mes\back\backstage-of-xinyaxuan-mes\app\Http\Controllers\TestController.php on line 8