[Bug 1939100] Re: no update from xubuntu 16.04

[Chris Guiver]

Thank you for taking the time to report this issue and helping to make
Ubuntu better.

You have 3rd party packages that are the issue, eg.

Broken kxstudio-meta-audio-plugins:amd64 Depends on qsampler:amd64 < 2:0.4.2-1kxstudio1v5 @ii mR >
  Considering qsampler:amd64 260 as a solution to kxstudio-meta-audio-plugins:amd64 0
  Removing kxstudio-meta-audio-plugins:amd64 rather than change qsampler:amd64

kxstudio-meta-audio-plugins is a 3rd party package, and has dependencies
that do not allow upgrade to occur.  Please also note this may not be
your only 3rd party package blocking upgrade.

Unofficial software packages not provided by Ubuntu can be removed using
a 'ppa-purge' tool prior to upgrade.

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https://bugs.launchpad.net/bugs/1939100

Title:
  no update from xubuntu 16.04

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  Calculating the changes

  Calculating the changes

  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade.

  This was caused by: 
  * Upgrading to a pre-release version of Ubuntu 
  This is most likely a transient problem, 
  please try again later. 
  If none of this applies, then please report this bug using the 
  command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. If 
  you want to investigate this yourself the log files in 
  '/var/log/dist-upgrade' will contain details about the upgrade. 
  Specifically, look at 'main.log' and 'apt.log'. 

  
  Restoring original system state

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.44
  ProcVersionSignature: Ubuntu 4.15.0-74.84-lowlatency 4.15.18
  Uname: Linux 4.15.0-74-lowlatency x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.20.9-0ubuntu7.24
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: XFCE
  Date: Fri Aug  6 07:28:05 2021
  InstallationDate: Installed on 2018-01-31 (1282 days ago)
  InstallationMedia: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2021-08-06 (0 days ago)

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