Face book with codeigniter error

[eluser]Unknown[/eluser]
Hi,
I created simple facebook application using codeigniter.when I go to the application I have got the following error.Please help me as soon as possible

Fatal error: Uncaught exception ‘FacebookRestClientException’ with message ‘Incorrect signature’ in /home/lovesurf/public_html/demo/myfacebookapp/system/application/libraries/facebook/facebookapi_php5_restlib.php:3065 Stack trace: #0 /home/lovesurf/public_html/demo/myfacebookapp/system/application/libraries/facebook/facebookapi_php5_restlib.php(1087): FacebookRestClient->call_method(‘facebook.friend…’, Array) #1 /home/lovesurf/public_html/demo/myfacebookapp/system/application/controllers/mytrail_controller.php(17): FacebookRestClient->friends_get() #2 /home/lovesurf/public_html/demo/myfacebookapp/system/codeigniter/CodeIgniter.php(232): Mytrail_controller->index() #3 /home/lovesurf/public_html/demo/myfacebookapp/index.php(115): require_once(’/home/lovesurf/...’) #4 {main} thrown in /home/lovesurf/public_html/demo/myfacebookapp/system/application/libraries/facebook/facebookapi_php5_restlib.php on line 3065

[eluser]danmontgomery[/eluser]
http://ellislab.com/forums/viewthread/145305/