求助：gii提示404 [ 新手入门 ]

http://localhost/lutest/index.php?r=gii

访问最后提示 Error 404 Unable to resolve the request "gii".

配置我已经修改了

'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'),
    ),
    //*/
),

http://localhost/lutest 是可以正常访问应用的

求助啊:Q