The operation couldn’t be completed. (com.facebook.sdk error 2.) ios6

Question

Hi i am ussing ios6 for facebook login and i am getting this error as native popup

The operation couldn’t be completed. (com.facebook.sdk error 2.)

This is

Answer 1

I solve my problem by passing nil permission while login.

[FBSession openActiveSessionWithReadPermissions:nil
                                       allowLoginUI:YES
                                  completionHandler: