Kubuntu distribution tool crashes on upgrade to Hardy Heron

[Reverend Hacker]

Binary package hint: update-manager

Traceback (most recent call last):
 File "/tmp/kde-sandbox/adept_updater8lbDcc.tmp-extract/dist-upgrade.py",
line 60, in <module>
   app.run()
 File "/tmp/kde-sandbox/adept_updater8lbDcc.tmp-extract/DistUpgradeController.py",
line 1580, in run
   self.fullUpgrade()
 File "/tmp/kde-sandbox/adept_updater8lbDcc.tmp-extract/DistUpgradeController.py",
line 1458, in fullUpgrade
   if not self.prepare():
 File "/tmp/kde-sandbox/adept_updater8lbDcc.tmp-extract/DistUpgradeController.py",
line 352, in prepare
   self.openCache()
 File "/tmp/kde-sandbox/adept_updater8lbDcc.tmp-extract/DistUpgradeController.py",
line 215, in openCache
   self._view.getOpCacheProgress())
 File "/tmp/kde-sandbox/adept_updater8lbDcc.tmp-extract/DistUpgradeCache.py",
line 51, in __init__
   raise CacheExceptionDpkgInterrupted, e
CacheExceptionDpkgInterrupted: E:dpkg was interrupted, you must
manually run 'dpkg --configure -a' to correct the problem.

...running Kubuntu 7.10 (gutsy gibbon)
...adept v.2.1.3ubuntu17.1
...was expecting to upgrade to Hardy Heron
...upgrade application crashed

[Michael Vogt (mvo)]

Thanks for your bugreport.

This message means that something went wrong during a previous package install. Please open a terminal (konsole) and run:
$ sudo dpkg --configure -a
there and retry the upgrade.

I convert this into a question.