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It seams to me that gnome-tweak-tool is not running, because when I'm trying to run gnome-tweak-tool in terminal following warnings appears:
WARNING : Shell not installed or running WARNING : Shell not running None INFO : GSettings missing key org.gnome.nautilus.desktop (key computer-icon-visible) WARNING : Error detecting shell Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/gtweak/tweaks/tweak_group_shell_extensions.py", line 275, in __init__ raise Exception("Shell not running or DBus service not available") Exception: Shell not running or DBus service not available
I'm using ubuntu 16.04 LTS. What can I do in order to fix this issue?