Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in C:\xampp\htdocs\cms-propay\vendor\encore\laravel-admin\tests\seeds\UserTableSeeder.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\cms-propay\vendor\encore\laravel-admin\tests\seeds\UserTableSeeder.php on line 7