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?