Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in C:\xampp\htdocs\OneUI 5.12\03 OneUI Source (Laravel Starter Kit)\database\seeders\DatabaseSeeder.php:9 Stack trace: #0 {main} thrown in C:\xampp\htdocs\OneUI 5.12\03 OneUI Source (Laravel Starter Kit)\database\seeders\DatabaseSeeder.php on line 9