Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in C:\xampp\htdocs\addfirst\Modules\Ecommerce\Http\Controllers\CheckoutController.php:22 Stack trace: #0 {main} thrown in C:\xampp\htdocs\addfirst\Modules\Ecommerce\Http\Controllers\CheckoutController.php on line 22