Error Type: <type 'exceptions.AttributeError'>
Error Value: 'NoneType' object has no attribute 'getProvides'
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 1819, in <module>
    main()
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 1810, in main
    backend.dispatch_command(args[0],args[1:])
  File : /usr/lib/python2.5/site-packages/packagekit/backend.py, line 478, in dispatch_command
    self.install_files(trusted,files_to_inst)
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 999, in install_files
    self._runYumTransaction()
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 1090, in _runYumTransaction
    rc,msgs =  self.yumbase.buildTransaction()
  File : /usr/lib/python2.5/site-packages/yum/__init__.py, line 641, in buildTransaction
    (rescode, restring) = self.resolveDeps()
  File : /usr/lib/python2.5/site-packages/yum/depsolve.py, line 688, in resolveDeps
    CheckDeps, checkinstalls, checkremoves, missing = self._resolveRequires(errors)
  File : /usr/lib/python2.5/site-packages/yum/depsolve.py, line 771, in _resolveRequires
    thisneeds = self._checkInstall(txmbr)
  File : /usr/lib/python2.5/site-packages/yum/depsolve.py, line 843, in _checkInstall
    provs = self.tsInfo.getProvides(*req)
  File : /usr/lib/python2.5/site-packages/yum/transactioninfo.py, line 431, in getProvides
    result = self.getOldProvides(name, flag, version)
  File : /usr/lib/python2.5/site-packages/yum/transactioninfo.py, line 424, in getOldProvides
    for pkg, hits in self.rpmdb.getProvides(name, flag, version).iteritems():