Fatal error: Uncaught Error: Class 'Illuminate\Database\Seeder' not found in C:\xampp\htdocs\cork-v2.1.1\Laravel\rtl\horizontal-light-menu\database\seeds\DatabaseSeeder.php:5 Stack trace: #0 {main} thrown in C:\xampp\htdocs\cork-v2.1.1\Laravel\rtl\horizontal-light-menu\database\seeds\DatabaseSeeder.php on line 5