Fatal error: Uncaught Error: Class 'Illuminate\Routing\AbstractRouteCollection' not found in D:\xampp\htdocs\psp\backend\vendor\laravel\framework\src\Illuminate\Routing\RouteCollection.php:9 Stack trace: #0 {main} thrown in D:\xampp\htdocs\psp\backend\vendor\laravel\framework\src\Illuminate\Routing\RouteCollection.php on line 9