Fatal error: Uncaught Error: Class "Illuminate\Foundation\Support\Providers\EventServiceProvider" not found in D:\Apache24\www\trace\新建文件夹\Backstage\app\Providers\EventServiceProvider.php:10 Stack trace: #0 {main} thrown in D:\Apache24\www\trace\新建文件夹\Backstage\app\Providers\EventServiceProvider.php on line 10