Android : Integrating facebook share in android application?

i followed this link to integrating facebook share in my android application to share application through facebook..

http://www.androidhive.info/2012/03/android-facebook-connect-tutorial/

Its working fine but when i want to post the message it shows the error in Logcat:

08-01 00:33:19.400: V/response(1338): {"error":{"message":"(#200) The user hasn't authorized the application to perform this action","type":"OAuthException","code":200}}

Can anybody help me with this issues.