Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in C:\xampp\htdocs\cms-propay\vendor\encore\laravel-admin\src\Auth\Database\AdminTablesSeeder.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\cms-propay\vendor\encore\laravel-admin\src\Auth\Database\AdminTablesSeeder.php on line 8