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I've been trying to update Ubuntu from 11.04 to 11.10 through Update Manager multiple times since the release but have encountered this error every single time:

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

If none of this applies, then please report this bug using the command 'ubuntu-bug update-manager' in a terminal.

The apt.log contains a lot of messages similar to:

Investigating (8) gnome-control-center [ amd64 ] < 1:2.32.1-0ubuntu15 -> 1:3.2.0-0ubuntu6 > ( gnome )
Broken gnome-control-center:amd64 Depends on libgnome-desktop-3-2 [ amd64 ] < none -> 3.2.0-0ubuntu4 > ( libs ) (>= 3.1.2)
  Considering libgnome-desktop-3-2:amd64 47 as a solution to gnome-control-center:amd64 22
  Holding Back gnome-control-center:amd64 rather than change libgnome-desktop-3-2:amd64

Any ideas what I can do to resolve this?

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Are you completely up-to-date on the regular updates? –  bntser Oct 16 '11 at 19:11
    
Yes, I've installed all avaliable updates, and also tried disabling all non-Ubuntu sources (PPAs). –  JLinden Oct 16 '11 at 19:14

1 Answer 1

up vote 4 down vote accepted

Had a similar issue. I then found this thread - removing the ia32-libs package as rockorequin suggested solved my problem.

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This did the trick! Just for reference for others: This might remove a few of your applications you'll have to reinstall after the upgrade. –  JLinden Oct 18 '11 at 9:31

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