Ubuntu – Dropbox problem in Indicator applet in Gnome classic

16.04dropboxgnome-classicindicator

I recently installed Ubuntu 16.04 and as I am more comfortable with Gnome classic, I have installed gnome-session-flashback and happily using that. It has some issues that can be tolerated. However, one thing that's really bothering me is that when I click at Dropbox icon in indicator applet I get a black dropdown that shows nothing. (Please see figure below.) Any suggestion how to solve this issue?

enter image description here

Best Answer

I had the same problem and this solved the issue for me :

dropbox stop && DBUS_SESSION_BUS_ADDRESS="" dropbox start

I found the answer at : Dropbox icon is not working Xubuntu 14.04 LTS 64

EDIT : This solution seems working only for the active session. And this one works after a reboot too : https://askubuntu.com/a/737615/545036