Laravel say that Auth guard [] is not defined

I'm beginer and I start learn and code with laravel... To enable user login nad registration I write this (as I see on one tutorilal):

at routes.php

 Route::controllers([
     'auth'=>'Auth\AuthController',
     'password'=>'Auth\PasswordController', ]);

and now when I type: http://localhost:8888/auth/login I get error:

InvalidArgumentException in AuthManager.php line 71: Auth guard [] is not defined.

Also in view folder there is no auth directory and login.blade.php files and other.

via Chebli Mohamed