Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in C:\xampp\htdocs\projet-GMAO\database\seeders\EquipementDemoSeeder.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\projet-GMAO\database\seeders\EquipementDemoSeeder.php on line 7