[Bug 1797267] Re: Ubuntu error on version update

[Brian Murray]

*** This bug is a duplicate of bug 1611737 ***
    https://bugs.launchpad.net/bugs/1611737

** This bug has been marked a duplicate of bug 1611737
   Can't upgrade from a release if ros packages are  installed from ROS servers

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https://bugs.launchpad.net/bugs/1797267

Title:
  Ubuntu error on version update

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

Bug description:
  The error occurs when I try to update the Ubuntu version from 16.04LTS
  to 18.04LTS

  Calculando los cambios

  Calculando los cambios

  No se ha podido calcular la actualización

  Ha ocurrido un problema mientras se calculaba la actualización.

  Eso se ha podido causar por: 
  * Actualizar a una versión de Ubuntu aún no publicada 
  * Estar ejecutando la versión actual, aún no publicada, de Ubuntu 
  * Paquetes no oficiales de software no proporcionados por Ubuntu 

  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:16.04.25
  ProcVersionSignature: Ubuntu 4.15.0-36.39~16.04.1-generic 4.15.18
  Uname: Linux 4.15.0-36-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity
  Date: Wed Oct 10 19:20:12 2018
  InstallationDate: Installed on 2017-08-19 (417 days ago)
  InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2018-10-11 (0 days ago)

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