[SOLVED] F15 gnome-tweak-tool error

[Kakao]

No extensions listed in the Shell Extensions:

WARNING : Error listing extensions
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/gtweak/tweaks/tweak_shell_extensions.py", line 146, in __init__
    for extension in shell.list_extensions().values():
  File "/usr/lib/python2.7/site-packages/gtweak/gshellwrapper.py", line 54, in list_extensions
    out = self._proxy.execute_js('const ExtensionSystem = imports.ui.extensionSystem; ExtensionSystem.extensionMeta')
  File "/usr/lib/python2.7/site-packages/gtweak/gshellwrapper.py", line 35, in execute_js
    result, output = self._proxy.Eval('(s)', js)
  File "/usr/lib64/python2.7/site-packages/gi/overrides/Gio.py", line 148, in __call__
    kwargs.get('flags', 0), kwargs.get('timeout', -1), None)
  File "/usr/lib64/python2.7/site-packages/gi/types.py", line 44, in function
    return info.invoke(*args)
GError: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.Shell was not provided by any .service files

# yum list gnome-tweak-tool
Loaded plugins: langpacks, presto, refresh-packagekit
Installed Packages
gnome-tweak-tool.noarch                       3.0.4-1.fc15                       @updates

---------- Post added at 08:46 AM ---------- Previous post was at 08:38 AM ----------

Solved. I was starting tweak-tool as root. Starting as myself works.

[fclock]

still not work for me :'(

what can i do?