Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in C:\xampp\htdocs\ProjectAll\laravel-project1111\app\Http\Controllers\ProductController.php.backup4:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\ProjectAll\laravel-project1111\app\Http\Controllers\ProductController.php.backup4 on line 20