Yii Usergroups Installation Fail

Hi all, could anyone please help me on how to install Yii UserGroups correctly. I have already followed the instructions here but I have no idea why there is still no way to get the installation done. It returned an error [color="#FF0000"]‘Property “CWebApplication.eauth” is not defined’[/color]. How to solve this error? Any help is much appreciated. Thanks in advance. Please help me~

Here’s my code:



// uncomment the following to define a path alias

// Yii::setPathOfAlias('local','path/to/local-folder');

// This is the main Web application configuration. Any writable

// CWebApplication properties can be configured here.

Yii::setPathOfAlias('bootstrap', dirname(__FILE__).'/../extensions/bootstrap');

return array(

    'theme'=>'bootstrap', // requires you to copy the theme under your themes directory


	'name'=>'Course & Timetabling System',

	// preloading 'log' component




	// autoloading model and component classes








		// uncomment the following to enable the Gii tool


        // accessCode can be changed


        // salt can be changed










			// If removed, Gii defaults to localhost only. Edit carefully to taste.





	// application components


	    'bootstrap' => array(

        'class' => 'ext.bootstrap.components.Bootstrap',



			// enable cookie-based authentication














            // GD or ImageMagick


            // ImageMagick setup path



		// uncomment the following to enable URLs in path-format













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




		// uncomment the following to use a MySQL database



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

			'emulatePrepare' => true,

			'username' => 'root',

			'password' => '',

			'charset' => 'utf8',

			'tablePrefix' => 'tbl_',




			// use 'site/error' action to display errors








					'levels'=>'error, warning, info, trace, notice',


				// uncomment the following to show log messages on web pages









	// application-level parameters that can be accessed

	// using Yii::app()->params['paramName']


		// this is used in contact page





Options +FollowSymLinks

IndexIgnore */*

<IfModule mod_rewrite.c>

RewriteEngine on

RewriteBase /test1/

# if a directory or a file exists, use it directly

RewriteCond %{REQUEST_FILENAME} !-f

RewriteCond %{REQUEST_FILENAME} !-d

# otherwise forward it to index.php

RewriteRule ^(.*)$ index.php/$1 [L]