Please make sure the prerequisites are set up correctly. Specifically check out the middle of step 4 to make sure you generated your key hash correctly using your debug keystore.
Otherwise code below should help out
private boolean hasPublishPermission() {
Session session = Session.getActiveSession();
return session != null && session.getPermissions().contains("publish_actions");
}
private void postStatusUpdate() {
if (hasPublishPermission()) {
final String message = "Posting to facebook";
Request request = Request
.newStatusUpdateRequest(Session.getActiveSession(), message, place, tags, new Request.Callback() {
@Override
public void onCompleted(Response response) {
showPublishResult(message, response.getGraphObject(), response.getError());
}
});
request.executeAsync();
} else {
pendingAction = PendingAction.POST_STATUS_UPDATE;
}
}