Fatal error: Uncaught Error: Class "Illuminate\Foundation\Support\Providers\AuthServiceProvider" not found in D:\Apache24\www\trace\新建文件夹\Backstage\app\Providers\AuthServiceProvider.php:8 Stack trace: #0 {main} thrown in D:\Apache24\www\trace\新建文件夹\Backstage\app\Providers\AuthServiceProvider.php on line 8