Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in C:\xampp\htdocs\myapp\laravel-project1111\database\seeders\QuestionSeeder.php:13 Stack trace: #0 {main} thrown in C:\xampp\htdocs\myapp\laravel-project1111\database\seeders\QuestionSeeder.php on line 13