[Bug 858401] [NEW] pkgProblemResolver stops upgrade from 10.10 to 11.04

[darkweasel]

Public bug reported:

When trying to upgrade from 10.10 to 11.04, I get this (I use the
German-language translation so it’s partly in German):

---
Es konnte nicht ermittelt werden, welche Systemaktualisierungen verfügbar sind

An unresolvable problem occurred while calculating the upgrade:
E:Fehler: Unterbrechungen durch pkgProblemResolver::Resolve hervorgerufen; dies könnte durch gehaltene Pakete verursacht worden sein.

 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

Falls nichts davon zutrifft, melden Sie dies bitte als Fehler im Paket »update-manager« und fügen Sie die Dateien aus dem Verzeichnis /var/log/dist-upgrade/ Ihrem Fehlerbericht hinzu.
---

The last paragraph says I should report this here. The files in /var/log
/dist-upgrade/20110924-2006 are attached.

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/858401

Title:
  pkgProblemResolver stops upgrade from 10.10 to 11.04

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  When trying to upgrade from 10.10 to 11.04, I get this (I use the
  German-language translation so it’s partly in German):

  ---
  Es konnte nicht ermittelt werden, welche Systemaktualisierungen verfügbar sind

  An unresolvable problem occurred while calculating the upgrade:
  E:Fehler: Unterbrechungen durch pkgProblemResolver::Resolve hervorgerufen; dies könnte durch gehaltene Pakete verursacht worden sein.

   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

  Falls nichts davon zutrifft, melden Sie dies bitte als Fehler im Paket »update-manager« und fügen Sie die Dateien aus dem Verzeichnis /var/log/dist-upgrade/ Ihrem Fehlerbericht hinzu.
  ---

  The last paragraph says I should report this here. The files in
  /var/log/dist-upgrade/20110924-2006 are attached.

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