Description of problem:
I tried to install new sofware when a message error came up
Component: Software Manager
Summary: TBfef41469 versionlock.py:45:exclude_hook:PluginYumExit: Unable to read
version lock configuration: [Errno 5] OSError: [Errno 2] No such file or
directory: ''/etc/yum/pluginconf.d/versionlock.list

Traceback (most recent call last):
  File "/usr/sbin/pirut", line 390, in ?
    main()
  File "/usr/sbin/pirut", line 386, in main
    pm.run()
  File "/usr/sbin/pirut", line 299, in run
    self.doRefresh()
  File "/usr/sbin/pirut", line 310, in doRefresh
    self.reposSetup(pbar)
  File "/usr/lib/python2.4/site-packages/pirut/__init__.py", line 154, in reposSetup
    self.doSackSetup()
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 299, in doSackSetup
    self.plugins.run('exclude')
  File "/usr/lib/python2.4/site-packages/yum/plugins.py", line 164, in run
    func(conduitcls(self, self.base, conf, **kwargs))
  File "/usr/lib/yum-plugins/versionlock.py", line 45, in exclude_hook
    raise PluginYumExit('Unable to read version lock configuration: %s' % e)
PluginYumExit: Unable to read version lock configuration: [Errno 5] OSError:
[Errno 2] No such file or directory: '/etc/yum/pluginconf.d/versionlock.list'

Local variables in innermost frame:
conduit: <yum.plugins.MainPluginConduit instance at 0x2aaab4c52a70>
e: [Errno 5] OSError: [Errno 2] No such file or directory:
'/etc/yum/pluginconf.d/versionlock.list'
locklist: []
location: /etc/yum/pluginconf.d/versionlock.list

Could somebody helps me?
Thanks