[Bug 1749831] Re: Update failed due to problem with ubuntu-desktop

[Daniel Davies]

I ran into the same problem this morning.

So far as I can tell, ubuntu-desktop depends on unity.  unity depends on 
compiz-core-abiversion20151010.  compiz-core-abiversion20161010 is a virtual 
package which is made available from compiz-core.
Two versions of compiz-core are available, one of them provides 
compiz-core-abiversion20151010.  So far, so good.  Unfortunately, the 
compiz-core package is intertwined with a bunch of other packages in the 
compiz metapackage.  There are two versions of the compiz metapackage available, but both 
reference newer versions of compiz-core than the one that provides 
compiz-core-abiversion20151010.

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https://bugs.launchpad.net/bugs/1749831

Title:
  Update failed due to problem with ubuntu-desktop

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

Bug description:
  I launched software-updater as I usually do, and I was informed I
  needed to perform a "partial upgrade," and I agreed to the dist
  upgrade.

  The indicator showed various packages being downloaded, but next thing
  I knew a dialog appeared saying:

  "Can't install 'ubuntu-desktop' It was impossible to install a
  required package. Please report this as a bug using 'ubuntu-bug
  ubuntu-release-upgrader-core' in a terminal."

  So I did.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.23
  ProcVersionSignature: Ubuntu 4.4.0-112.135-generic 4.4.98
  Uname: Linux 4.4.0-112-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.15
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Thu Feb 15 16:33:08 2018
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: No upgrade log present (probably fresh install)
  VarLogDistupgradeTermlog:

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