Click on Sessing module generates "this module encountered an error while loading"

Thanks for your report.

Could you open the terminal, and run this command and give the outputs to me?

    python -c 'from ubuntutweak.factory import WidgetFactory;print WidgetFactory.create("Switch", label="indicator", enable_reset=True, backend="gsettings", key="com.canonical.indicator.session.user-show-menu")'

Thanks for answer.

Here you are:

python -c 'from ubuntutweak.factory import WidgetFactory;print WidgetFactory.create("Switch", label="indicator", enable_reset=True, backend="gsettings", key="com.canonical.indicator.session.user-show-menu")'

(-c:16176): GConf-WARNING **: : You can't use a GConfEngine that has an active GConfClient wrapper object. Use GConfClient API instead.

(-c:16176): GConf-WARNING **: : You can't use a GConfEngine that has an active GConfClient wrapper object. Use GConfClient API instead.
Checking if settings need to be migrated ...no
Checking if internal files need to be migrated ...no
Backend : gconf
Integration : true
Profile : unity
Adding plugins
Initializing core options...done
[factory][ERROR]
Distribution: Ubuntu 12.04 precise
Application: Ubuntu Tweak 0.7.1-1~precise1
Desktop:ubuntu

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/factory.py", line 61, in do_composite_create
    new_widget = globals().get(widget)(**kwargs)
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/gui/widgets.py", line 77, in __init__
    SettingWidget.__init__(self, key=key, default=default, type=bool, backend=backend)
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/gui/widgets.py", line 25, in __init__
    self._setting = GSetting(key=key, default=default, type=type)
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/settings/gsettings.py", line 26, in __init__
    raise Exception('Oops, Settings schema "%s" is not installed' % self.schema_id)
Exception: Oops, Settings schema "com.canonical.indicator.session" is not installed
 (factory.py:63)
[None, None]