yiic migrate di ubuntu

Yidik ( sapaan buat Yii Addict ) ane mau tanya nih, kalau pada waktu migrate di yiic ubuntu itu ada eror kaya gini :

exception ‘CException’ with message ‘Alias “application.extensions.PHPPDO.CPdoDbConnection” is invalid. Make sure it points to an existing PHP file and the file is readable.’ in /opt/lampp/htdocs/belajar_yii/framework/YiiBase.php:322

padahal di protected/config/console.php ane udah setting ke database kaya begindang


		// 'db'=>array(

		// 	'connectionString' => 'sqlite:'.dirname(__FILE__).'/../data/testdrive.db',

		// ),

		// uncomment the following to use a MySQL database



			'connectionString' => 'mysql:host=localhost;dbname=jaly',


		    'pdoClass' => 'PHPPDO',

			'emulatePrepare' => true,

			'username' => 'root',

			'password' => '',

			'charset' => 'utf8',


gimana yah gan, ane stack abis gan ?