[Bug 1241565] [NEW] Cannot upgrade from 13.04 to 13.10

[Nick]

Public bug reported:

Xubuntu 13.04
when I try to upgrade to 13.10, it say (Cannot calculate system upgrading):

"Не удалось рассчитать обновление системы

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

Если ничего из перечисленного не подходит, сообщите об этой ошибке,
выполнив команду «ubuntu-bug ubuntu-release-upgrader-core» в терминале."

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: ubuntu-release-upgrader-core 1:0.192.13
ProcVersionSignature: Ubuntu 3.8.0-32.47-generic 3.8.13.10
Uname: Linux 3.8.0-32-generic x86_64
ApportVersion: 2.9.2-0ubuntu8.4
Architecture: amd64
CrashDB: ubuntu
Date: Fri Oct 18 16:45:55 2013
InstallationDate: Installed on 2012-08-31 (412 days ago)
InstallationMedia: Xubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120817.3)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to raring on 2013-10-18 (0 days ago)
VarLogDistupgradeTermlog:

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug dist-upgrade raring

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https://bugs.launchpad.net/bugs/1241565

Title:
  Cannot upgrade from 13.04 to 13.10

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

Bug description:
  Xubuntu 13.04
  when I try to upgrade to 13.10, it say (Cannot calculate system upgrading):

  "Не удалось рассчитать обновление системы

  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

  Если ничего из перечисленного не подходит, сообщите об этой ошибке,
  выполнив команду «ubuntu-bug ubuntu-release-upgrader-core» в
  терминале."

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: ubuntu-release-upgrader-core 1:0.192.13
  ProcVersionSignature: Ubuntu 3.8.0-32.47-generic 3.8.13.10
  Uname: Linux 3.8.0-32-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.4
  Architecture: amd64
  CrashDB: ubuntu
  Date: Fri Oct 18 16:45:55 2013
  InstallationDate: Installed on 2012-08-31 (412 days ago)
  InstallationMedia: Xubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120817.3)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to raring on 2013-10-18 (0 days ago)
  VarLogDistupgradeTermlog:

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