Could not calculate the upgrade

[Dale Maris]

Received the following message when attempting to update my current release, 12.04LTS.

Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade.

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

Release 12.04LTS

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.14.6
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
Date: Tue Aug 14 23:20:07 2012
GsettingsChanges:
 com.ubuntu.update-manager first-run false
 com.ubuntu.update-manager launch-time 1344991461
 com.ubuntu.update-manager show-details true
 com.ubuntu.update-manager window-height 627
 com.ubuntu.update-manager window-width 600
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: Upgraded to precise on 2012-05-03 (103 days ago)

[Jean-Baptiste Lallement (jibel)]

Thanks for your report.

Could you please attach the output of the command:
$ sudo apt-get -o Debug::pkgProblemResolver=true dist-upgrade

Thanks in advance.

[Dale Maris (dmaris)]

dale@dales-dell:~$ sudo apt-get -o Debug::pkagProblemResolver=true dist-upgrade
[sudo] password for dale:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Failed
The following packages have unmet dependencies:
 libnspr4 : Breaks: evolution-plugins (< 3.2.0-0ubuntu2) but 2.32.2-0ubuntu7 is to be installed
 libnspr4:i386 : Breaks: evolution-plugins (< 3.2.0-0ubuntu2) but 2.32.2-0ubuntu7 is to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.
dale@dales-dell:~$

Thanks for your assistance, I don't know all of these commands and be sure to let me know if you need anything else.

Dale Maris

[Dale Maris (dmaris)]

I may se what is happing. A few weeks, maybe a few months ago I did not apply all the updates to Evolution as I use Thunderbird for my e-mail. I thought that may be a mistake, but I dont know how to undo this. When I run update manager, I have 3 unchecked boxes for Evolution. Maybe I need to reinstall Evolution?

Dale

[Jean-Baptiste Lallement (jibel)]

Thanks for the logs. I'm marking this report as duplicate of bug 1036794.

To workaround this issue you can uninstall evolution-plugins, if you don't use evolution.
To completely remove evolution-plugins, open a terminal and run the command:
 $ sudo apt-get autoremove --purge evolution-plugins

Hope this helps.

[Dale Maris (dmaris)]

I uninstalled the evolution-plugins per Jean-Baptiste Laliement. This has fixed my problem, I can now apply update. Do I need to close this issue?

Dale Maris