Facebook post text on wall - access token always NULL

Question

I am dealing for a long time with this problem. I have registered my app on facebook but I stil getting this error:

{"error":{"message":"An active access token must be used to query information about the current user.","type":"OAuthException","code":2500}

my code :

facebook = new Facebook("3************0");
facebook.authorize(this, new String[] { "publish_stream","user_status"}, new FaceDialog());
// dialog will shown and I log in into facebook
String token = facebook.getAccessToken(); // returns null

Bundle parameters = new Bundle();
parameters.putByteArray("message", "Haloooo".getBytes());
parameters.putByteArray("description", "test test test".getBytes());
response = facebook.request("me");
response = facebook.request("me/feed", param, 
                    "POST");

Does someone solved this problem ?