Fatal error: Uncaught Error: Interface 'Illuminate\Routing\RouteCollectionInterface' not found in C:\xampp\htdocs\admin\vendor\laravel\framework\src\Illuminate\Routing\AbstractRouteCollection.php:17 Stack trace: #0 {main} thrown in C:\xampp\htdocs\admin\vendor\laravel\framework\src\Illuminate\Routing\AbstractRouteCollection.php on line 17