Fatal error: Uncaught Error: Class "Illuminate\Database\Seeder" not found in C:\xampp\htdocs\addfirst\Modules\Testimonial\Database\Seeders\TestimonialDatabaseSeeder.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\addfirst\Modules\Testimonial\Database\Seeders\TestimonialDatabaseSeeder.php on line 8