Dropbox missing icon in UbuntuStudio 16.04 (Solved)

RESUMEN:
At this time 2016-04-25 I install Dropbox (nautilus-dropbox) but the icon in UbuntuStudio 16.04  64 bits are missing:



INSTRUCTIONS:

In you terminal run

sudo gedit /usr/bin/dropbox

Create a new line after import os and add the following:

os.environ['DBUS_SESSION_BUS_ADDRESS'] = ""

Save and rebot

Here a Gif I made:

And, if someday Dropbox update and not working more, repeat this tutorial

Reference:

Dropbox icon is not working Xubuntu 14.04 LTS 64

This applies to UbuntuStudio 15.10, 16.04 and Xubuntu (both based on XFCE)

Snapshot working:

God Bless