Kali Linux KDE. Software center is not loading?

So I sudo downloaded software center (Ubuntu I think), it downloaded, installed, but when I click on it will not load. get this in terminal. Anyone know what is going on?
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Fontconfig warning: "/etc/fonts/conf.d/65-droid-sans-fonts.conf", line 103: Having multiple values in <test> isn't supported and may not work as expected
Fontconfig warning: "/etc/fonts/conf.d/65-droid-sans-fonts.conf", line 138: Having multiple values in <test> isn't supported and may not work as expected
2013-08-05 16:05:10,180 - softwarecenter.ui.gtk3.em - INFO - EM's: 15 13 19
Traceback (most recent call last):
File "/usr/bin/software-center", line 133, in <module>
app = SoftwareCenterAppGtk3(datadir, xapian_base_path, options, args)
File "/usr/share/software-center/softwarecenter/ui/gtk3/app.py", line 247, in __init__
self.backend = get_install_backend()
File "/usr/share/software-center/softwarecenter/backend/installbackend.py", line 69, in get_install_backend
from softwarecenter.backend.installbackend_impl.aptd import AptdaemonBackend
File "/usr/share/software-center/softwarecenter/backend/installbackend_impl/aptd.py", line 34, in <module>
from aptdaemon import client
File "/usr/lib/python2.7/dist-packages/aptdaemon/client.py", line 70, in <module>
class MemoizedMixIn(MemoizedTransaction, GObject.GObjectMeta):
File "/usr/lib/python2.7/dist-packages/gi/module.py", line 316, in __getattr__
return getattr(self._introspection_module, name)
File "/usr/lib/python2.7/dist-packages/gi/module.py", line 135, in __getattr__
self.__name__, name))
AttributeError: 'gi.repository.GObject' object has no attribute 'GObjectMeta'