[已解决]新手求救 YUM 命令出问题了

我用的是FC8 一开始是YUM任何安装程序都是返回NO PACKAGE AVAILABLE ，后来看来几篇一帖子改了几个文件的设置，再用YUM命令时都是返回如下：本人新手有老鸟能看出是那里错了吗？

Traceback (most recent call last):
File "/usr/bin/yum", line 29, in
yummain.main(sys.argv[1:])
File "/usr/share/yum-cli/yummain.py", line 85, in main
base.getOptionsConfig(args)
File "/usr/share/yum-cli/cli.py", line 154, in getOptionsConfig
disabled_plugins=opts.disableplugins)
File "/usr/lib/python2.5/site-packages/yum/__init__.py", line 164, in _getConfig
self.getReposFromConfig()
File "/usr/lib/python2.5/site-packages/yum/__init__.py", line 229, in getReposFromConfig
parser.readfp(confpp_obj)
File "/usr/lib/python2.5/site-packages/iniparse/compat.py", line 106, in readfp
self.data.readfp(fp)
File "/usr/lib/python2.5/site-packages/iniparse/ini.py", line 563, in readfp
if line and line[-1]=='\n':
UnboundLocalError: local variable 'line' referenced before assignment

[ 本帖最后由 senjun 于 2008-10-16 08:31 编辑 ]