Yii-auth install error

Hi i try install yii auth ext http://www.yiiframework.com/extension/auth/ , but have error "include(User.php): failed to open stream: No such file or directory"

my config


<?php


// uncomment the following to define a path alias

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

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

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

// CWebApplication properties can be configured here.

return array(

	'basePath'=>dirname(__FILE__).DIRECTORY_SEPARATOR.'..',

	'name'=>'My Web Application',


	'aliases' => array(

    'bootstrap' => 'ext.bootstrap',

	),

	

	// preloading 'log' component

	'preload'=>array('log'),


	// autoloading model and component classes

	'import'=>array(

		'bootstrap.behaviors.*',

		'bootstrap.helpers.*',

		'bootstrap.widgets.*',

		'application.models.*',

	),


	'modules'=>array(

		 'auth' => array(

                        'strictMode' => true, // when enabled authorization items cannot be assigned children of the same type.

                        'userClass' => 'User', // the name of the user model class.

                        'userIdColumn' => 'id', // the name of the user id column.

                        'userNameColumn' => 'name', // the name of the user name column.

                        'defaultLayout' => 'application.views.layouts.main', // the layout used by the module.

                        'viewDir' => null, // the path to view files to use with this module.

                ),

		// uncomment the following to enable the Gii tool

		

		'gii'=>array(

			'class'=>'system.gii.GiiModule',

			'password'=>'123',

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

			'ipFilters'=>array('127.0.0.1','::1'),

		),

		

	),


	// application components

	'components'=>array(

	

	

	

	

	'authManager' => array(

	'behaviors' => array(

            'auth' => array(

                'class' => 'auth.components.AuthBehavior',

				 'admins' => array('admin'),

            ),

        ),

	  ),

	  

	  

	'user'=>array(

			// enable cookie-based authentication

			//'allowAutoLogin'=>true,

			'class' => 'auth.components.AuthWebUser',

		),

		

		

		 'bootstrap'=>array(

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

        ),

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

		/*

		'urlManager'=>array(

			'urlFormat'=>'path',

			'rules'=>array(

				'<controller:\w+>/<id:\d+>'=>'<controller>/view',

				'<controller:\w+>/<action:\w+>/<id:\d+>'=>'<controller>/<action>',

				'<controller:\w+>/<action:\w+>'=>'<controller>/<action>',

			),

		),

		*/

		/*'db'=>array(

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

		),*/

		// uncomment the following to use a MySQL database

		

		'db'=>array(

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

			'emulatePrepare' => true,

			'username' => 'root',

			'password' => '',

			'charset' => 'utf8',

		),

		

		'errorHandler'=>array(

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

			'errorAction'=>'site/error',

		),

		'log'=>array(

			'class'=>'CLogRouter',

			'routes'=>array(

				array(

					'class'=>'CFileLogRoute',

					'levels'=>'error, warning',

				),

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

				/*

				array(

					'class'=>'CWebLogRoute',

				),

				*/

			),

		),

	),

	

	// application-level parameters that can be accessed

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

	'params'=>array(

		// this is used in contact page

		'adminEmail'=>'webmaster@example.com',

	),

	


);

what i do wrong ?

Is the User model present in the application models folder?

no , how can i get this models ?

Surely you must have a table in which you register your users. Why else would you install Yii-auth?

When that user table has a model by another name change the settings of the module auth.