I am trying to access user information from facebook sdk.But I keep getting this error.

{"error":{"message":"Error validating access token: The session has been invalidated because the user has changed the password.","type":"OAuthException","code":190,"error_subcode":460}}

Here is the call which returns me the error in the response parameter of the oncomplete function.

mAsyncRunner.request("me", new RequestListener() {
        @Override
        public void onComplete(String response, Object state) {
            Log.d("Profile", response);
            String json = response;    //<-- error in response
            try {

                JSONObject profile = new JSONObject(json);
                MainActivity.this.userid   = profile.getString("id");
                new GetUserProfilePic().execute();
                runOnUiThread(new Runnable() {

                    @Override
                    public void run() {
                        Toast.makeText(getApplicationContext(), "Name: " + MainActivity.this.userid, Toast.LENGTH_LONG).show();
                    }

                });

            } catch (JSONException e) {
                e.printStackTrace();
                Log.e("jsonexception",e.getMessage());
                facebook.extendAccessTokenIfNeeded(MainActivity.this, null);
                GetUserInfo();
            }
        }
        @Override
        public void onIOException(IOException e, Object state) {
        }

        @Override
        public void onFileNotFoundException(FileNotFoundException e,
                Object state) {
        }

        @Override
        public void onMalformedURLException(MalformedURLException e,
                Object state) {
        }

        @Override
        public void onFacebookError(FacebookError e, Object state) {
        }
});

Sometimes I get the correct response also.I think this is due to the access token expiration if I am right. So can you guys tell me how to extend the access token although I've used this facebook.extendAccessTokenIfNeeded(this, null); in the onResume method of the activity.

How to solve this?