[Bug 950676] Re: lucid->precise upgrade failure due to gir1.0->gir1.2 conflicts

[Robert Ancell]

Can you see what is trying to keep seed?

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Title:
  lucid->precise upgrade failure due to gir1.0->gir1.2 conflicts

Status in “apt” package in Ubuntu:
  New
Status in “apt” source package in Precise:
  New

Bug description:
  The current lucid to precise upgrade fails to compute an upgrade path
  with universe packages, reproduced by
  https://jenkins.qa.ubuntu.com/view/Precise/job/precise-upgrade-lucid-
  universe/.

  The apt.log is not that easy to read, but it seems to be due to the
  dependencies of libseed0 in lucid. Most packages (the OpenCV related
  ones) fail due to broken libgtk2.0-dev, which fails due to

  Investigating (1) libgtk2.0-dev [ i386 ] < 2.20.1-0ubuntu2.1 -> 2.24.10-0ubuntu5 > ( libdevel )
  Broken libgtk2.0-dev:i386 Depends on gir1.2-gtk-2.0 [ i386 ] < none -> 2.24.10-0ubuntu5 > ( libs )

  which fails due to

  Investigating (0) gir1.2-gtk-2.0 [ i386 ] < none -> 2.24.10-0ubuntu5 > ( libs )
  Broken gir1.2-gtk-2.0:i386 Conflicts on gir1.0-gtk-2.0 [ i386 ] < 2.20.1-0ubuntu2.1 > ( libs )

  which is pulled in by

    Installing gir1.0-gtk-2.0 as Depends of libseed0

  Now, libseed0 and gir1.0-* do not even exist any more, so the correct
  solution would be to remove libseed0 and all gir1.0-* packages.

  This might be an apt bug, but we might be able to work around it
  somehow.

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