Could not calculate the upgrade

[Roman]

When I try upgrade Kubuntu 13.04 to Kubuntu 13.10 , I get next error:
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ApportVersion: 2.9.2-0ubuntu8.3
Architecture: i386
CrashDB: ubuntu
DistroRelease: Ubuntu 13.04
InstallationDate: Installed on 2013-10-09 (8 days ago)
InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release i386 (20130424)
MarkForUpload: True
NonfreeKernelModules: nvidia
Package: ubuntu-release-upgrader (not installed)
ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8
Tags: raring dist-upgrade
Uname: Linux 3.8.0-31-generic i686
UpgradeStatus: Upgraded to raring on 2013-10-17 (0 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
VarLogDistupgradeTermlog:

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Brian Murray (brian-murray)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal:

  apport-collect 1241142

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs.

[Roman (roman-shafeyev)]

apport information

[Roman (roman-shafeyev)]

apport information

[Roman (roman-shafeyev)]

apport information

[Roman (roman-shafeyev)]

apport information

[Roman (roman-shafeyev)]

apport information

[Roman (roman-shafeyev)]

apport information

[Launchpad Janitor (janitor)]

[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no activity for 60 days.]

[Peter De Maeyer (peter-de-maeyer)]

The exact same thing happened to me when trying to upgrade from 13.10 to 14.04.

[Peter De Maeyer (peter-de-maeyer)]

Updated status from "Expired" to "New" because it is new for 14.04.

[Peter De Maeyer (peter-de-maeyer)]

The error I get:

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Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade.

 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 ubuntu-release-upgrader-core' in a terminal.
---

I ran 'ubuntu-bug ubuntu-release-upgrader-core' as the message suggested, and that is how I got to this existing bug. I was hoping the collected information would automatically be attached to this bug, but I'm not sure if that happened correctly.

[Kenny Barrow (kbarrow)]

I also received this Error when upgrading kubuntu 13.10 to 14.04 "Could Not Calculate the Upgrade"

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Peter De Maeyer (peter-de-maeyer)]

I just attached some files in /var/log/dist-upgrade/20140423-2025//
I believe the following is relevant info in main.log:

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2014-04-18 21:57:15,564 ERROR Package brscan3 has no priority set
2014-04-18 21:57:15,957 ERROR Package hl4150cdncupswrapper:i386 has no priority set
2014-04-18 21:57:15,957 ERROR Package hl4150cdnlpr:i386 has no priority set
2014-04-18 21:57:17,331 ERROR Package mfcj5910dwcupswrapper:i386 has no priority set
2014-04-18 21:57:17,331 ERROR Package mfcj5910dwlpr:i386 has no priority set
2014-04-18 22:13:01,324 ERROR Dist-upgrade failed: 'E:Unable to correct problems, you have held broken packages.'
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It concerns proprietary Brother drivers for my printer and scanner, which I have installed according to the instructions on the Brother support page. One dubious aspect I remember about the installation is that I had to 'force' the installation...

Can I still upgrade and just ignore these problems?