[Bug 1450195] Re: attempted to update Ubuntu 14.10 to 15.04. Could not calculate the upgrade.

[Brian Murray]

*** This bug is a duplicate of bug 1447782 ***
    https://bugs.launchpad.net/bugs/1447782

** This bug has been marked a duplicate of bug 1447782
   cannot upgrade to 15.04 due to php5 ppa

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https://bugs.launchpad.net/bugs/1450195

Title:
  attempted to update Ubuntu 14.10 to 15.04. Could not calculate the
  upgrade.

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

Bug description:
  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 calculate 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 terminated with exit status 1 (Wed Apr 29 15:38:20 2015) ===

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: ubuntu-release-upgrader-core 1:14.10.10
  ProcVersionSignature: Ubuntu 3.16.0-36.48-generic 3.16.7-ckt9
  Uname: Linux 3.16.0-36-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.4
  Architecture: amd64
  CrashDB: ubuntu
  Date: Wed Apr 29 15:34:11 2015
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to utopic on 2015-04-29 (0 days ago)

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