ajax 刷新 500 PHP Error

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//访问的控制器方法

public function actionPedigree($id)

    {


        $pedigree = Pedigree::model()->findAllByAttributes(array('user_id'=>$id));

        $this->widget('ext.pedigree.PedigreeWidget',array(

            //族谱的数据

            'pedigreeData'=>$pedigree,

            //进行正方形的属性设置

            'squareOptions'=>array(

                'class'=>'vertical'

            ),

            'isAjax'=>true,

            'id' => $id,

        ));

    }








class PedigreeWidget extends CWidget{

public function init(){

        if(empty($this->pedigreeData)) return false;

        //

        if(!$this->isAjax)

        {   //注册JS,CSS文件

            $this->registerClientResource();

        }

        echo '<div class="pedigree_all">';

        $this->analysisData();

        echo '</div>';

    }

}

2012/09/07 07:58:08 [error] [php] copy(D:\www\weishiji\assets\4271125d\css\bootstrap-yii.css): failed to open stream: Invalid argument (D:\www\weishiji\framework\utils\CFileHelper.php:130)

Stack trace:

#0 D:\www\weishiji\framework\utils\CFileHelper.php(59): copyDirectoryRecursive()

#1 D:\www\weishiji\framework\web\CAssetManager.php(233): copyDirectory()

#2 D:\www\weishiji\protected\extensions\bootstrap\components\Bootstrap.php(328): CAssetManager->publish()

#3 D:\www\weishiji\protected\extensions\bootstrap\components\Bootstrap.php(103): Bootstrap->getAssetsUrl()

#4 D:\www\weishiji\protected\extensions\bootstrap\components\Bootstrap.php(84): Bootstrap->registerCoreCss()

#5 D:\www\weishiji\framework\base\CModule.php(388): Bootstrap->init()

#6 D:\www\weishiji\framework\base\CModule.php(493): CWebApplication->getComponent()

#7 D:\www\weishiji\framework\base\CApplication.php(146): CWebApplication->preloadComponents()

#8 D:\www\weishiji\framework\YiiBase.php(127): CWebApplication->__construct()

#9 D:\www\weishiji\framework\YiiBase.php(100): createApplication()

#10 D:\www\weishiji\index.php(13): createWebApplication()

REQUEST_URI=/weishiji/index.php?r=site/pedigree&id=5

in D:\www\weishiji\protected\extensions\bootstrap\components\Bootstrap.php (328)

in D:\www\weishiji\protected\extensions\bootstrap\components\Bootstrap.php (103)

in D:\www\weishiji\protected\extensions\bootstrap\components\Bootstrap.php (84)