新手第一次创建不能进入gii页面 [ 新手入门 ]

访问 http://www.myyii.com/testdrive/index.php?r=gii不能进入gii页面

页面报错 Error 404 Unable to resolve the request "gii".

这个已经改过了

'modules'=>array(
    // uncomment the following to enable the Gii tool
    ///*
    'gii'=>array(
        'class'=>'system.gii.GiiModule',
        'password'=>'123456',
        // If removed, Gii defaults to localhost only. Edit carefully to taste.
        'ipFilters'=>array('127.0.0.1','::1'),
    ),
    //*/
),