Fatal error: Uncaught Error: Class "Illuminate\Support\ServiceProvider" not found in D:\Apache24\www\sx.nxytec.cn\xiansheng-api\app\Providers\AppServiceProvider.php:7 Stack trace: #0 {main} thrown in D:\Apache24\www\sx.nxytec.cn\xiansheng-api\app\Providers\AppServiceProvider.php on line 7