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[Marco Trevisan (Treviño) <mail@xxxxxxxxx>]

** Changed in: unity (Ubuntu)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/1103729

Title:
  unity from ppa:ubuntu-unity/daily-build fails to install due to libnux
  mismatch

Status in Unity:
  Fix Released
Status in “unity” package in Ubuntu:
  Fix Released

Bug description:
  The daily unity-release job [1] is failing due to install failure of
  unity from  ppa:ubuntu-unity/daily-build:

  $ sudo apt-get install unity
  Reading package lists... Done
  Building dependency tree       
  Reading state information... Done
  Some packages could not be installed. This may mean that you have
  requested an impossible situation or if you are using the unstable
  distribution that some required packages have not yet been created
  or been moved out of Incoming.
  The following information may help to resolve the situation:

  The following packages have unmet dependencies:
   unity : Depends: libnux-abiversion-20121204
           Recommends: hud but it is not installable
  E: Unable to correct problems, you have held broken packages.

  $ apt-cache policy unity
  unity:
    Installed: (none)
    Candidate: 6.12.0daily13.01.23-0ubuntu1
    Version table:
       6.12.0daily13.01.23-0ubuntu1 0
          500 http://ppa.launchpad.net/ubuntu-unity/daily-build/ubuntu/ raring/main i386 Packages
       6.12.0daily13.01.21-0ubuntu1 0
          500 http://us.archive.ubuntu.com/ubuntu/ raring/main i386 Packages

  $ apt-cache policy libnux-4.0-0 
  libnux-4.0-0:
    Installed: 4.0.0daily13.01.23-0ubuntu1
    Candidate: 4.0.0daily13.01.23-0ubuntu1
    Version table:
   *** 4.0.0daily13.01.23-0ubuntu1 0
          500 http://ppa.launchpad.net/ubuntu-unity/daily-build/ubuntu/ raring/main i386 Packages
          100 /var/lib/dpkg/status
       4.0.0daily13.01.18-0ubuntu1 0
          500 http://us.archive.ubuntu.com/ubuntu/ raring/main i386 Packages

  $ apt-cache showpkg libnux-4.0-0
  ...
  Provides: 
  4.0.0daily13.01.23-0ubuntu1 - libnux-abiversion-20130121

  
  It looks like unity and nux might have been built in the ppa concurrently and unity picked up the old libnux abiversion before nux was replaced. I assume this will resolve itself next time unity rebuilds in the ppa.

  [1]
   - https://jenkins.qa.ubuntu.com/job/ps-unity-autopilot-release-testing/42/
   - https://jenkins.qa.ubuntu.com/job/ps-unity-autopilot-release-testing/43/

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