Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in /opt/lampp/htdocs/msjklinik/database/seeders/generate_id_antrian.php:9 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/msjklinik/database/seeders/generate_id_antrian.php on line 9