Take the current latitude and longitude

import Toybox.Graphics;
import Toybox.WatchUi;
import Toybox.Position;
import Toybox.System;

class PositionData {
function getLatitude() {
var _positionInfo = Position.getInfo();
var _coords = _positionInfo.position.toDegrees();

return _coords[0];
}
function getLongitude() {
var _positionInfo = Position.getInfo();
var _coords = _positionInfo.position.toDegrees();
return _coords[1];
}
}

it always return 180.000000

How can i get real latitude and longitude