Problem with MergeList

[Jonas Schwabe]

I have a warning icon next to my me-menu since today, telling me to report a bug against update-manager.
I think this is an apt bug, but I am just following the instructions on screen and add apt afterwards.

I will translate the error message to english:

--
A critical error occured while initializing the packageinformation.
Please report a bug against »update-manager« and attach the following error message:
E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/de.archive.ubuntu.com_ubuntu_dists_quantal-updates_main_i18n_Translation-en, E:The file could not be opened or parsed correctly.

original message:
Ein unlösbares Problem ist während der Initialisierung der Paketinformation aufgetreten.

Bitte melden Sie einen Fehler im Paket »update-manager« und fügen Sie die folgende Fehlermeldung an den Fehlerbericht an:
E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/de.archive.ubuntu.com_ubuntu_dists_quantal-updates_main_i18n_Translation-en, E:Die Paketliste oder die Statusdatei konnte nicht eingelesen oder geöffnet werden.
--

I would like to provide more information (using apport) but I get an error, stating that the problem cannot be submitted. I will attach the file which is part of the error message. I could not find another log file which shows any information about the problem (even /var/log/apt does not contain any interesting files) :/

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Reviewing your bug report it seems that you are experiencing bug 346386. This issue happens when you have tried to update your package information when you are a network that didn't return the right files. This issue can be cleaned up by using the following commands in a terminal:

1.) sudo rm /var/lib/apt/lists/*
2.) sudo apt-get update

Thanks and good luck!

[This is an automated message. I apologize if it reached you inappropriately; please reopen the bug task if it was incorrect.]