Upgrade fails while calculating changes

[JanCeuleers]

Binary package hint: update-manager

While trying to upgrade from 10.04 to 10.10, update-manager fails with the following error message:

Could not determine the upgrade

An unresolvable problem occurred while calculating the upgrade.

Please report this bug in the 'update-manager' package and try to include the following error message:
'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.'

As far as I am aware there are no held packages.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: update-manager 1:0.134.11
ProcVersionSignature: Ubuntu 2.6.32-28.55-generic 2.6.32.27+drm33.12
Uname: Linux 2.6.32-28-generic i686
Architecture: i386
Date: Sun Feb 20 14:33:30 2011
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager

[Manfred Hampl (m-hampl)]

This can be a duplicate of bug 614993 (and dozens of similar ones)

If the package xserver-xorg-video-nouveau is installed, in several cases the 10.04 to 10.10 upgrade fails with the error message

"Could not determine the upgrade
An unresolvable problem occurred while calculating the upgrade:
E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
This can be caused by:
* Upgrading to a pre-release version of Ubuntu
* Running the current pre-release version of Ubuntu
* Unofficial software packages not provided by Ubuntu"

Several persons have reported that after removal of that package the upgrade was successful.

Try this workaround: Open a terminal and enter the command:

sudo apt-get remove xserver-xorg-video-nouveau

and try the upgrade again.

[JanCeuleers (jan-ceuleers)]

Confirmed: this is indeed a duplicate of bug 614993.

This did not jump out at me when I filed the bug though. Perhaps this is a problem worth fixing?