Login error in blog tutorial

Hello Friends!

I am new to the beautiful Yii Framework. So I am just going through the tutorials and documentation. So I am doing the blog tutorial from starting. So for blog application I made export the database from the blog folder which comes with Yii to MySQL. Again I decided to use Yii User module and for that I made export the user module database to MySQL. Now my problem is that when I am using login in the application it is showing some error like this


Trying to get property of non-object 

I both tried


 index.php?r=site/login

and also


index.php?r=user/login

both failed. So can some one tell me how to solve this. FYI in my database there are two fields like ‘ia_user’ which is imported from the blog folder and ‘ia_users’ which is imported from the Yii User module folder. So is there any thing wrong. Below I am pasting the configuration of main.php file.


<?php


// 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.

return array(

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

  'name'=>'My Blog Application',


  // preloading 'log' component

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


  // autoloading model and component classes

  'import'=>array(

    'application.models.*',

    'application.components.*',

    /*user module starts here*/

    'application.modules.user.models.*',

    'application.modules.user.components.*',

    /*user module ends here*/

  ),


  'modules'=>array(

    // uncomment the following to enable the Gii tool

    /*

    'gii'=>array(

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

      'password'=>'Enter Your Password Here',

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

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

    ),

    */

  ),


  // application components

  'components'=>array(

    'user'=>array(

      // enable cookie-based authentication

      'allowAutoLogin'=>true,

      /*user module starts here*/

      'loginUrl' => array('/user/login'),

      /*user module ends here*/

    ),

    // 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=tbl_blog',

      'emulatePrepare' => true,

      'username' => 'root',

      'password' => 'root',

      'charset' => 'utf8',

      'tablePrefix'=> 'tbl_',

    ),

    

    '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',

  ),

);

Please help me out.Any help and suggestions will be highly appreciable.

The error message should tell you the line where the exception happens.

Take a look at the source which object is not instanciated.