Without comment #5 i would not have this possible fix
Possible solution:
Replace the Exec= line in /usr/share/dbus-1/services/indicator-sound.service with this line
Exec=/bin/sh -c 'if [ -n "$(pidof xfce4-session)" ]; then /usr/lib/indicator-sound-gtk2/indicator-sound-service;else /usr/lib/x86_64-linux-gnu/indicator-sound/indicator-sound-service;fi'
This will make the change only affect the XFCE desktop environment so it will not effect the Unity/KDE/Gnome/Lubuntu DEs for example
Without comment #5 i would not have this possible fix dbus-1/ services/ indicator- sound.service with this line indicator- sound-gtk2/ indicator- sound-service; else /usr/lib/ x86_64- linux-gnu/ indicator- sound/indicator -sound- service; fi'
Possible solution:
Replace the Exec= line in /usr/share/
Exec=/bin/sh -c 'if [ -n "$(pidof xfce4-session)" ]; then /usr/lib/
This will make the change only affect the XFCE desktop environment so it will not effect the Unity/KDE/ Gnome/Lubuntu DEs for example