An Internal system Error 各位高手救救我呀

前几天下了 Fedora 10 装上了，不过装rpm任何软件包都装不上，总是出现如下错误代码、
麻烦各位高手看看
Error Type: <type 'exceptions.UnicodeDecodeError'>
Error Value: 'ascii' codec can't decode byte 0xe4 in position 73: ordinal not in range(128)
  File : /usr/lib/python2.5/site-packages/yum/rpmtrans.py, line 376, in callback
    self._instProgress( bytes, total, h )
  File : /usr/lib/python2.5/site-packages/yum/rpmtrans.py, line 457, in _instProgress
    self.complete_actions, self.total_actions)
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 2101, in event
    self._showName(self.info_actions[action])
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 2094, in _showName
    self.base.package(package_id, status, self.curpkg.summary)
  File : /usr/share/PackageKit/helpers/yum/yumBackend.py, line 237, in package
    PackageKitBaseBackend.package(self, package_id, status, summary)
  File : /usr/lib/python2.5/site-packages/packagekit/backend.py, line 108, in package
    print >> sys.stdout, "package\t$s\t$s\t$s" $ (status, package_id, summary)

好像你的系统没有安装好啊，有的文件安装错误。