Class "CI_Controller" not found

An uncaught Exception was encountered
Type: Error
Message: Class "CI_Controller" not found
Filename: /home/indrapr1/public_html/system/core/CodeIgniter.php
Line Number: 369
Backtrace:
File: /home/indrapr1/public_html/application/config/routes.php
Line: 179
Function: get
File: /home/indrapr1/public_html/index.php
Line: 282
Function: require_once


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please help me regarding this error, because when I go to these files and lines, there is everything fine, but this error is always showing.

1) Did you move the application or system folders to another folder?
2) Did you setup your base_url in application/config/config.php?
3) Did you create your .htaccess file?

Just a few things to check for.

What did you Try? What did you Get? What did you Expect?

Joined CodeIgniter Community 2009.  ( Skype: insitfx )