Here are the warnings I see when doing
$ gnome-tweak-tool
WARNING : Shell not installed or running
WARNING : Shell not running
None
INFO : GSetting missing org.gnome.settings-daemon.plugins.power
INFO : GSetting missing org.gnome.settings-daemon.plugins.power
INFO : GSetting missing org.gnome.settings-daemon.plugins.power
INFO : GSetting missing org.gnome.settings-daemon.plugins.power
INFO : GSetting missing org.gnome.settings-daemon.plugins.xrandr
WARNING : Testing for expected AutostartCondition failed: Got (None)
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/gtweak/utils.py", line 161, in uses_autostart_condition
return asc.split(" ", 1)[0] == autostart_type
AttributeError: 'NoneType' object has no attribute 'split'
INFO : GSetting missing org.gnome.nautilus.desktop
INFO : GSetting missing org.gnome.nautilus.desktop
INFO : GSetting missing org.gnome.nautilus.desktop
INFO : GSetting missing org.gnome.nautilus.desktop
INFO : GSetting missing org.gnome.nautilus.desktop
INFO : GSetting missing org.gnome.nautilus.preferences
INFO : GSetting missing org.gnome.settings-daemon.peripherals.mouse
WARNING : Error detecting shell
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/gtweak/tweaks/tweak_shell_extensions.py", line 199, in __init__
raise Exception("Shell not running or DBus service not available")
Exception: Shell not running or DBus service not available
INFO : GSetting missing org.gnome.settings-daemon.plugins.xsettings
INFO : GSetting missing org.gnome.settings-daemon.plugins.xsettings