Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Auth\Guard" not found in I:\www\frameworks\Laravel\vendor\laravel\framework\src\Illuminate\Contracts\Auth\StatefulGuard.php:5 Stack trace: #0 {main} thrown in I:\www\frameworks\Laravel\vendor\laravel\framework\src\Illuminate\Contracts\Auth\StatefulGuard.php on line 5