Android Facebook Api Exception - remote_app_id does not match stored id

Question

I have an issue as said in the title of this post. I am unable to login.

SessionState currentstate =  session.getState();

gives me

Answer 1

I know this has already has a selected answer, but it is important to note that if you are trying to use keytool instead of printing the keyhash in code, make sure you use the keytool that comes with java 1.6 instead of java 1.7.