Mike:
    Just back home and retry the problem.
What I do:
1. reinstall empathy back first
2. run update-manager -d
3. No PKGproblemresloveler problem prompts again.
Seems problem is gone.
Have a nice day.

David YC Yu
IBM Systems and Technology Group Lab Service & Training
mail : <email address hidden>, Tie-line : 849-6560
Phone : 886-2-8170-6560 / Mobile : 886-932-901-978
8F, Building E, Nan-Kang Software Park, 19-11 San-Chong Road, Taipei, 11501
Taiwan


                                                                           
             Michael Vogt                                                  
             <michael.vogt@ubu                                             
             ntu.com>                                                   To 
             Sent by:                  David YC Yu/Taiwan/IBM@IBMTW        
             bounces@canonical                                          cc 
             .com                                                          
                                                                   Subject 
                                       [Bug 551782] Re: Not able to        
             03/31/2010 03:31          dist-upgrade,       "calculating    
             PM                        changes" can't solve dependencies   
                                       and fail                            
                                                                           
             Please respond to                                             
                Bug 551782                                                 
             <<email address hidden>                                             
                chpad.net>                                                 
                                                                           
                                                                           




Could you please try this again? The empathy problem (that is the root
for many of the messages like this) is in the archive now and I can no
longer reproduce this particular failure (with the /var/lib/dpkg/status
file provided). If it stills fails for you (and you are using a up-to-
date mirror that has the latest empathy-common) then please attach
/var/lib/dpkg/status and I will try to rerproduce.


** Changed in: update-manager (Ubuntu)
       Status: New => Fix Released

--
Not able to dist-upgrade, "calculating changes" can't solve dependencies
and fail
https://bugs.launchpad.net/bugs/551782
You received this bug notification because you are a direct subscriber
of the bug.

Status in “update-manager” package in Ubuntu: Fix Released

Bug description:
Binary package hint: update-manager

I'm using Ubuntu Karmic, 9.10, and trying to upgrade to Lucid using
update-manager or do-release-upgrade fails with the following message:

{{{
Checking for a new ubuntu release
Done Upgrade tool signature
Done Upgrade tool
Done downloading
extracting 'lucid.tar.gz'
authenticate 'lucid.tar.gz' against 'lucid.tar.gz.gpg'

Reading cache

Checking package manager
Reading package lists: Done
Reading state information: Done
Reading state information: Done
Reading state information: Done
Done downloading

Reading package lists: Donem lucid-backports/universe Packages: 92

Reading state information: Done
Reading state information: Done
Reading state information: Done

Updating repository information
WARNING: Failed to read mirror file
Done downloading

Checking package manager
Reading package lists: Done
Reading state information: Done
Reading state information: Done
Reading state information: Done

Calculating the changes

Calculating the changes

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 against the
'update-manager' package and include the files in
/var/log/dist-upgrade/ in the bug report.


Restoring original system state

Aborting
Reading package lists: Done
Reading state information: Done
Reading state information: Done
Reading state information: Done
}}}

update-manager version is 1:0.126.9

Despite the fact it says the system was restored to the original state, my
sources.list has the lucid entries, instead of the karmic ones I had before
the upgrade attempt.

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