Description of problem:

I got the following traceback from yum while it tried to resolve some
dependencies:

Traceback (most recent call last):
  File "/usr/bin/yum", line 27, in ?
    yummain.main(sys.argv[1:])
  File "/usr/share/yum-cli/yummain.py", line 133, in main
    (result, resultmsgs) = base.buildTransaction()
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 339, in
buildTransaction
    (rescode, restring) = self.resolveDeps()
  File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 255, in resolveDeps
    (checkdep, missing, conflict, errormsgs) = self._processConflict(dep)
  File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 683, in
_processConflict
    self.doUpdateSetup()
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 281, in
doUpdateSetup
    self.pkgSack.simplePkgList())
AttributeError: YumBaseCli instance has no attribute 'pkgSack'


Version-Release number of selected component (if applicable):
yum-2.4.0-8

How reproducible:
no idea - does not seem to be obvious how to do that