Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in D:\xampp\htdocs\_runing\sales-manager-system\app\Http\Controllers\PurchaseController.php:11 Stack trace: #0 {main} thrown in D:\xampp\htdocs\_runing\sales-manager-system\app\Http\Controllers\PurchaseController.php on line 11