Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in D:\Apache24\www\api.print.nxytec.cn\back\database\seeders\DatabaseSeeder.php:7 Stack trace: #0 {main} thrown in D:\Apache24\www\api.print.nxytec.cn\back\database\seeders\DatabaseSeeder.php on line 7