Fatal error: Uncaught RuntimeException: A facade root has not been set. in C:\xampp\htdocs\laravel-project00\vendor\laravel\framework\src\Illuminate\Support\Facades\Facade.php:358 Stack trace: #0 C:\xampp\htdocs\laravel-project00\test_user_level.php(20): Illuminate\Support\Facades\Facade::__callStatic('purge', Array) #1 {main} thrown in C:\xampp\htdocs\laravel-project00\vendor\laravel\framework\src\Illuminate\Support\Facades\Facade.php on line 358