Fatal error: Uncaught Error: Class "Illuminate\Support\ServiceProvider" not found in D:\Apache24\www\api.print.nxytec.cn\back\vendor\laravel\framework\src\Illuminate\Filesystem\FilesystemServiceProvider.php:7 Stack trace: #0 {main} thrown in D:\Apache24\www\api.print.nxytec.cn\back\vendor\laravel\framework\src\Illuminate\Filesystem\FilesystemServiceProvider.php on line 7