Cannot update to Kubuntu 11.10 from 11.04

[Toni Helenius]

Upgrade fails by "Could not calculate update". E:Error, pkgProblemResolver.
---
Architecture: amd64
DistroRelease: Ubuntu 11.04
InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027.1)
NonfreeKernelModules: nvidia
Package: update-manager (not installed)
ProcEnviron:
 LANGUAGE=
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
Tags: natty
Uname: Linux 2.6.38-11-generic x86_64
UpgradeStatus: Upgraded to natty on 2011-10-23 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Phil. V (philip.v)]

Thank you for your bug report. From a terminal could you please run the following command:
apport-collect 880447

That will add relevant debugging information and log files to your report, which will aid developers and triagers in diagnosing your problem. Thanks in advance!

[Toni Helenius (toni-helenius)]

I did it but did it fail:
Waiting to hear from Launchpad about your decision...
ERROR: hook /usr/share/apport/package-hooks//source_update-manager.py crashed:
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/apport/report.py", line 664, in add_hooks_info
    symb['add_info'](self)
  File "/usr/share/apport/package-hooks//source_update-manager.py", line 12, in add_info
    attach_gconf(report, 'update-manager')
  File "/usr/lib/python2.7/dist-packages/apport/hookutils.py", line 458, in attach_gconf
    import gconf
ImportError: No module named gconf
QInotifyFileSystemWatcherEngine::addPaths: inotify_add_watch failed: No such file or directory
QFileSystemWatcher: failed to add paths: /home/toni/.config/ibus/bus

[Phil. V (philip.v)]

Well that's strange. Could you please manually attach the files located in "/var/log/dist-upgrade/" to your report? That's what I was hoping apport would collect.

[Jean-Baptiste Lallement (jibel)]

Could you please add the log files from '/var/log/dist-upgrade/' to this bug report as separate attachments? Thanks in advance.

I filed bug 880704 for the crash you're seeing with the package hook which is a separate issue from the upgrade failure you're experiencing.

[Jean-Baptiste Lallement (jibel)]

Thanks for the logs. It confirms that it is a duplicate of bug 874220, as such I'm marking as dup.
The workaround is to remove libsublime1 and then try upgrading again.