I'm having the same problem, but no clementine or libreoffice installed. And only few indicators.
$ dpkg -l | egrep ^ii | egrep -o indicator-\\S* indicator-applet indicator-applet-complete indicator-applet-session indicator-application indicator-appmenu indicator-datetime indicator-power indicator-session indicator-sound
I'm having the same problem, but no clementine or libreoffice installed. And only few indicators.
$ dpkg -l | egrep ^ii | egrep -o indicator-\\S* applet- complete applet- session application
indicator-applet
indicator-
indicator-
indicator-
indicator-appmenu
indicator-datetime
indicator-power
indicator-session
indicator-sound