Cmenu.url Is Not Defined

I am studying Yii and I have managed to create a skeleton pproject using the Yii framework. I am also reading a book and the book tells you to modify some code. Here is the code from the book typed exactly like it is in the book


        <div id="mainmenu">


            if (Yii::app()->user->isGuest) {

                $this->widget('zii.widgets.CMenu', array(

                    'activeCssClass' => 'active',

                    'activateParents' => true,




                        'url'=>array('/site/page', 'view'=>'about')),



                        array('label'=>'Login', 'url'=>array('/site/login'))



            } else {

            $this->widget('zii.widget.Cmenu', array('activeCssClass' => 'active',

                'activateParents' => true,

                    'items'=>array(array('label'=>'Home', 'url'=>array('/site/index')),

                        array('label'=>'Comic books', 'url'=>array('/Book'),

                            'items'=>array(array('label'=>'Publishers', 'url'=>array('/publisher')),



                               array('label'=>'Logout ('.Yii::app()->user->name.')', 'url'=>array('/site/logout'))





        </div><!-- mainmenu -->

I get an error on the site CExeption Property "CMenu.url" is not defined.

and here is the code from the Yii installation causing the exeption:


149         if(isset($this->widgets[$className]))

150             $properties=$properties===array() ? $this->widgets[$className] : CMap::mergeArray($this->widgets[$className],$properties);

151         if($this->enableSkin)

152         {

153             if($this->skinnableWidgets===null || in_array($className,$this->skinnableWidgets))

154             {

155                 $skinName=isset($properties['skin']) ? $properties['skin'] : 'default';

156                 if($skinName!==false && ($skin=$this->getSkin($className,$skinName))!==array())

157                     $properties=$properties===array() ? $skin : CMap::mergeArray($skin,$properties);

158             }

159         }

160         foreach($properties as $name=>$value)

161             $widget->$name=$value;

162         return $widget;

163     }


165     /**

166      * Returns the skin for the specified widget class and skin name.

167      * @param string $className the widget class name

168      * @param string $skinName the widget skin name

169      * @return array the skin (name=>value) for the widget

170      */

171     protected function getSkin($className,$skinName)

172     {

173         if(!isset($this->_skins[$className][$skinName]))

Please can someone show me what is wrong and how this works so I can better understand what I am doing wrong.

Your commenting out of halves of lines has completely messed up your array declaration:


      'url'=>array('/site/page', 'view'=>'about')),



The mismatched brackets have caused the system to attempt to attach the ‘url’ attributes to both the items element and the CMenu itself.

Try writing the code more cleanly before continuing.