Yumex crashing

[Antonio M]

When I try to update some packages with yumex, I get this message and
then yumex crashes.
I guess that some dependency is broken, but I can'y understand why it crashes...


Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/yumexbackend/yum_server.py",
line 1138, in dispatcher
    self.parse_command(args[0], args[1:])
  File "/usr/lib/python2.6/site-packages/yumexbackend/yum_server.py",
line 1094, in parse_command
    self.build_transaction()
  File "/usr/lib/python2.6/site-packages/yumexbackend/yum_server.py",
line 674, in build_transaction
    rc, msgs = self.buildTransaction()
  File "/usr/lib/python2.6/site-packages/yum/__init__.py", line 815,
in buildTransaction
    (rescode, restring) = self.resolveDeps()
  File "/usr/lib/python2.6/site-packages/yum/depsolve.py", line 714,
in resolveDeps
    CheckDeps, checkinstalls, checkremoves, missing =
self._resolveRequires(errors)
  File "/usr/lib/python2.6/site-packages/yum/depsolve.py", line 816,
in _resolveRequires
    (checkdep, missing, errormsgs) = self._processReq(po, dep)
  File "/usr/lib/python2.6/site-packages/yum/depsolve.py", line 285,
in _processReq
    CheckDeps, missingdep = self._requiringFromInstalled(po,
requirement, errormsgs)
  File "/usr/lib/python2.6/site-packages/yum/depsolve.py", line 419,
in _requiringFromInstalled
    return self._requiringFromTransaction(requiringPo, requirement, errorlist)
  File "/usr/lib/python2.6/site-packages/yum/depsolve.py", line 525,
in _requiringFromTransaction
    msg = self._err_missing_requires(requiringPo, requirement)
  File "/usr/lib/python2.6/site-packages/yum/depsolve.py", line 313,
in _err_missing_requires
    msg = self.dsCallback.format_missing_requires(reqPo, reqTup)
  File "/usr/share/yum-cli/output.py", line 1638, in format_missing_requires
    for pkg in sorted(yb.rpmdb.getProvides(needname)):
AttributeError: 'NoneType' object has no attribute 'rpmdb'

-- 
Antonio Montagnani
Skype : antoniomontag
SIP: antoniomontag at ekiga.net