[Bug 1270666] Re: Complains of "unresolvable problem" but no details presented

[Brian Murray]

*** This bug is a duplicate of bug 934371 ***
    https://bugs.launchpad.net/bugs/934371

** This bug has been marked a duplicate of bug 934371
   Unresolvable problem message does not help users and results in less useful bug reports

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https://bugs.launchpad.net/bugs/1270666

Title:
  Complains of "unresolvable problem" but no details presented

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

Bug description:
  See below for output.  But basically I can't upgrade to trusty from
  saucy using the upgrader because it complains of an "unresolvable
  problem" but doesn't tell me what.  If I hack sources.list to trusty
  and do a manual apt-get dist-upgrade it does not report any problem.

  So two things:
   1. is the release upgrader broken?
   2. For goodness sake, print the actual damn error message to the screen.

  ===============

  
  Checking package manager
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done
  Building data structures... Done 

  Calculating the changes

  Calculating the changes

  Could not determine the upgrade

  An unresolvable problem occurred while calculating the upgrade.

  This can be caused by: 
  * Upgrading to a pre-release version of Ubuntu 
  * Running the current pre-release version of Ubuntu 
  * Unofficial software packages not provided by Ubuntu 

  If none of this applies, then please report this bug using the 
  command 'ubuntu-bug ubuntu-release-upgrader-core' in a terminal. 

  
  Restoring original system state

  Aborting
  Reading package lists... Done    
  Building dependency tree          
  Reading state information... Done
  Building data structures... Done 
  === Command detached from window (Mon Jan 20 11:03:58 2014) ===
  === Command terminated with exit status 1 (Mon Jan 20 11:03:58 2014) ===

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: ubuntu-release-upgrader-core 1:0.205.4
  ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
  Uname: Linux 3.11.0-15-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  CrashDB: ubuntu
  Date: Mon Jan 20 11:04:06 2014
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to saucy on 2014-01-20 (0 days ago)

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