Fatal error: Uncaught Error: Class 'Symfony\Component\HttpFoundation\Request' not found in C:\xampp\htdocs\admin\vendor\laravel\framework\src\Illuminate\Http\Request.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\admin\vendor\laravel\framework\src\Illuminate\Http\Request.php on line 20