fedora 10 에서packagekit 실행시 에러발생

패키지킷 실행해서 설치된 패키지를 검색하는데 다음과 같은 에러가 나오면서 예상치못한 에러라는둥 그러네요

혹시 해결할방법아시는분계신지??..

Error Type:
Error Value: 'NoneType' object is unsubscriptable
File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 2314, in
main()
File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 2311, in main
backend.dispatcher(sys.argv[1:])
File : /usr/lib/python2.5/site-packages/packagekit/backend.py, line 600, in dispatcher
self.dispatch_command(args[0], args[1:])
File : /usr/lib/python2.5/site-packages/packagekit/backend.py, line 562, in dispatch_command
self.search_group(options, searchterms)
File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 439, in search_group
self._check_init(lazy_cache=True)
File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 1995, in _check_init
self.yumbase.repos.doSetup()
File : /usr/lib/python2.5/site-packages/yum/repos.py, line 71, in doSetup
self.ayum.plugins.run('postreposetup')
File : /usr/lib/python2.5/site-packages/yum/plugins.py, line 178, in run
func(conduitcls(self, self.base, conf, **kwargs))
File : /usr/lib/yum-plugins/rpm-warm-cache.py, line 32, in postreposetup_hook
cmd = commands[0]

참고로 패키지킷에 관련된건 전부다 삭제하고 다시 설치해봤지만 결과는같더군요..--

고수님들의 조언 부탁드립니다