I can't upgrade to Bionic Beaver

[José Marcelo de Castro]

when I try upgrade to Ubuntu 18.04 from 16.04 the upgrade software stop and show the message "There is a unsolve problem, an error occurred while calculating the update.". After three possible cause are showed:
Upgrade to a pre-release
to run from the pre-release version
Use non-official ubuntu package.

Neither above are applicable to me.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.25
ProcVersionSignature: Ubuntu 4.15.0-30.32~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-30-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: KDE
Date: Mon Aug 13 22:30:11 2018
InstallationDate: Installed on 2017-04-01 (499 days ago)
InstallationMedia: Kubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to xenial on 2018-08-14 (0 days ago)
VarLogDistupgradeTermlog:

[Launchpad Janitor (janitor)]

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

[trisha g (trishag)]

so how does this issue get fixed??

[trisha g (trishag)]

when I try upgrade to Ubuntu 18.04 from 16.04 the upgrade software stop and show the message "There is a unsolve problem, an error occurred while calculating the update.". After three possible cause are showed:
Upgrade to a pre-release
to run from the pre-release version
Use non-official ubuntu package.

Neither above are applicable to me. How to fix??

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-release-upgrader-core 1:16.04.25
ProcVersionSignature: Ubuntu 4.15.0-30.32~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-30-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: KDE
Date: Mon Aug 13 22:30:11 2018
InstallationDate: Installed on 2017-04-01 (499 days ago)
InstallationMedia: Kubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to xenial on 2018-08-14 (0 days ago)
VarLogDistupgradeTermlog:

[José Marcelo de Castro (jmccastro)]

I can't fix it yet.

Em Sáb, 15 de dez de 2018 21:35, trisha g <<email address hidden>
escreveu:

> so how does this issue get fixed??
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1786876
>
> Title:
> I can't upgrade to Bionic Beaver
>
> Status in ubuntu-release-upgrader package in Ubuntu:
> Invalid
>
> Bug description:
> when I try upgrade to Ubuntu 18.04 from 16.04 the upgrade software stop
> and show the message "There is a unsolve problem, an error occurred while
> calculating the update.". After three possible cause are showed:
> Upgrade to a pre-release
> to run from the pre-release version
> Use non-official ubuntu package.
>
> Neither above are applicable to me.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 16.04
> Package: ubuntu-release-upgrader-core 1:16.04.25
> ProcVersionSignature: Ubuntu 4.15.0-30.32~16.04.1-generic 4.15.18
> Uname: Linux 4.15.0-30-generic x86_64
> ApportVersion: 2.20.1-0ubuntu2.18
> Architecture: amd64
> CrashDB: ubuntu
> CurrentDesktop: KDE
> Date: Mon Aug 13 22:30:11 2018
> InstallationDate: Installed on 2017-04-01 (499 days ago)
> InstallationMedia: Kubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64
> (20170215)
> PackageArchitecture: all
> SourcePackage: ubuntu-release-upgrader
> UpgradeStatus: Upgraded to xenial on 2018-08-14 (0 days ago)
> VarLogDistupgradeTermlog:
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1786876/+subscriptions
>