Where does this error come from? Error: com.facebook.FacebookException: Failed to get app name

Question

I am unable to figure this out. I have added my keyhashes and all to the Facebook webpage but I am unable to figure out this error

11-12 19:51:27.744: D/HelloFacebook(5188): Error: com.facebook.FacebookException: Failed to get app name.

Answer 1

I found this exception when my Facebook app is in Sandbox Mode but logged in and try to post status by a user who not included in developer list. You may check your developer roles or disable the Sandbox Mode.