Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in C:\laragon\www\backup\old\archive\facevalo-app\database\seeders\CalendrierSeeder.php:13 Stack trace: #0 {main} thrown in C:\laragon\www\backup\old\archive\facevalo-app\database\seeders\CalendrierSeeder.php on line 13