Call to undefined method Illuminate\Routing\Route::get()

按照 教程 编写的代码
Route::get('/', 'WelcomeController@index');

Route::get('home', 'HomeController@index');

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

但是执行
Whoops, looks like something went wrong.
1/1 FatalErrorException in routes.php line 15: Call to undefined method Illuminate\Routing\Route::get()