I am developing iphone app which shares photos on social networks.For photo sharing I am using \"Sharekit\".I have created Facebook App and using its api key and secrete.(us
apparently this problem was faced by me too.
Since i was using their old API methods.. it is really tough to find the cause now..
Although i have not used ShareKit..i believe it is also using the older methods.
I solved the problem by using their official tutorial on Facebook iOS integration