facebookErrDomain error 10000

Hello,

I am using the social networking package for the first time that I have purchased in 2012.
I have integrated the package successfully and I am successfully login to the Facebook using my application, but while **posting score on Facebook it failed to post the score with the error : **The operation couldn't be completed. (facebookErrDomain error 10000.)****

Steps that I am following to integrate Facebook are:
1. Adding "SocialNetworkingManager" and "SocialNetworkingEventListener" prefabs in the scene.
2. Adding CFBundle URL scheme:
Size - 1
Element 0 - "fb"+myappid
3. Check if internet connected
4. Initialize Facebook on button click with FacebookBinding.Init(myappid);
5. FacebookBinding.login();
6. FacebookBinding.postMessageWithLink("12578976466", "http://www.google.com" , "App Name");

I am using unity4.5.6 and running my application on iOS4.3.2, and i have also integrated GameCenter(Leader Board) successfully in the app

Got a reply by prime31, that I have not requested the required permissions for the action that i am trying to perform, can any one let me know what kind of permission that i need to perform for the same......????

Thanks Regards:
Niki.j