Public bug reported:
I tried to upgrade to 12.04 alpha version 11.10, by typing "update-manager -d"
from terminal, after completing getting new software channels, I got this error
message:
" Could not calculate 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
If none of this applies, then please report this bug using the command
'ubuntu-bug update-manager' in a terminal."
For your more info, I've attached some screenshots...
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: update-manager 1:0.152.25.5
ProcVersionSignature: Ubuntu 3.0.0-15.25-generic 3.0.13
Uname: Linux 3.0.0-15-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Sat Feb 18 00:14:05 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: Upgraded to oneiric on 2012-02-17 (0 days ago)
** Affects: update-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug dist-upgrade i386 oneiric running-unity
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https://bugs.launchpad.net/bugs/934413
Title:
An unresolvable problem occurred while calculating the upgrade
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