[Bug 940179] Re: lucid->precise upgrade failed: pkgProblemResolver::Resolve generated breaks

[Martin Pitt]

This seems to be the root of it:

Investigating (0) libjpeg-turbo8-dev [ amd64 ] < none -> 1.1.90+svn733-0ubuntu4 > ( libdevel )
Broken libjpeg-turbo8-dev:amd64 Conflicts on libjpeg62-dev [ amd64 ] < 6b-15ubuntu1 -> 6b1-2ubuntu1 > ( libdevel )
  Considering libjpeg62-dev:amd64 0 as a solution to libjpeg-turbo8-dev:amd64 -1
  Holding Back libjpeg-turbo8-dev:amd64 rather than change libjpeg62-dev:amd64

Broken r-base-dev:amd64 Depends on libjpeg-dev [ amd64 ] < none > ( none )
  Considering libjpeg62-dev:amd64 235 as a solution to r-base-dev:amd64 37
  Removing r-base-dev:amd64 rather than change libjpeg-dev:amd64

I. e. we have packages that previously depended on libjpeg62-dev in
oneiric/lucid, but now the upgrade pulls in libjpeg-turbo8-dev which
Conflicts: libjpeg62-dev.

We could perhaps drop the Conflicts, or make it versioned, or add a
Provides: libjpeg62-dev?


** Package changed: update-manager (Ubuntu) => libjpeg-turbo (Ubuntu)

** Changed in: libjpeg-turbo (Ubuntu)
       Status: New => Triaged

** Also affects: libjpeg-turbo (Ubuntu Precise)
   Importance: Undecided
       Status: Triaged

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https://bugs.launchpad.net/bugs/940179

Title:
  lucid->precise upgrade failed: pkgProblemResolver::Resolve generated
  breaks

Status in “libjpeg-turbo” package in Ubuntu:
  Triaged
Status in “libjpeg-turbo” source package in Precise:
  Triaged

Bug description:
  automated upgrade testing lucid to precise universe amd64 failed with
  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.

  
  https://jenkins.qa.ubuntu.com/job/precise-upgrade-lucid-universe/ARCH=amd64,LTS=lts,PROFILE=universe,label=upgrade-test/32/

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