java - Getting a "must overide supercalss methed" when compiling facebooks sample code -

i'm trying compile sample code facebook sdk. i'm getting errors on lines below @override

example on following lines

   @override    public void startactivityforresult(intent intent, int requestcode)  

i error says

the methed startactivityforresult of type new must overide super class type

could delete @override

whatever class extending assumed have method declaration of startactivityforresult exact return type , parameters. check if following it. can remove @override , work, saying, method doesn't exist in super class. verify class perhaps extending. if method supposed invoked , not, else break.