Android Facebook session issue

Question

I have used following code for Facebook authentication and it is working fine, but when I have cancelled the authentication and tried to authenticate again the app crashed a

Answer 1

I too had same problem, but i solved with these lines. To my knowledge we cannot request a session for new permissions which is already opened.

Session session = new Session(this);
    Session.setActiveSession(session);
    session.openForRead(new Session.OpenRequest(this).setCallback(callback).setPermissions(Arrays.asList("your_permissions")));

I hope you already added below line in onActivityResult()

Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data);