title: Mapbox polylines not working
body: <p>I am trying to draw a path using Mapbox's polylines. However, no lines appear to get drawn. I decided to add markers as well, just to see if they would get added. Adding markers works. Why not polylines? Here's my code:</p>
  
  <pre><code>@Override
  public void onMyLocationChange(@Nullable Location location) {
      LatLng loc = new LatLng(location.getLatitude(), location.getLongitude());
      Log.e("MAP", location.getLatitude()+", "+location.getLongitude());
      mapView.addPolyline(new PolylineOptions()
              .width(60f)
              .color(Color.GREEN)
              .alpha(1f)
              .add(loc));
      mapView.addMarker(new MarkerOptions()
              .title("HERE")
              .position(loc));
  }
  </code></pre>