Notification logo appears and update-manager is unable to run

[Isabel Ordonez]

The error message that popped up was:

"Could not initialize the package information

An unresolvable problem occurred while initializing the package information."

The it explicitly asked me to include the following error message:

'E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/se.archive.ubuntu.com_ubuntu_dists_precise_multiverse_i18n_Translation-en, E:The package lists or status file could not be parsed or opened.'

More info:
1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu: Ubuntu 12.04.1 LTS

2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center:
When runnign this command in a terminal I get:
"E: Encountered a section with no Package: header
E: Problem with MergeList /var/lib/apt/lists/se.archive.ubuntu.com_ubuntu_dists_precise_multiverse_i18n_Translation-en
E: The package lists or status file could not be parsed or opened."

3) What you expected to happen: I was not intending to run the update manager, it just does regularly, but lately it has had this problem. All other functions on the computer seem to be working without problem.

4) What happened instead: I am not sure when was the last update my computer managed to complete... but otherwise this generates no problem for me.

[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.]

[Isabel Ordonez (isabel-ordonez)]

I followed the instructions for bug #346386.
But it did not solve the problem.
I can remove the files from /var/lib/apt/lists/* , not the partial folder.
Then when I get update through the terminal, there seems to be no problem. So far so good.

But when I run the update-manager outside of the terminal it sais that there are 328 selected updates. Describing a change of version from 2.7. 102-0ubuntu3.4 to 2.7. 102-0ubuntu3.7.

When trying to install updates I get the following error:

"The package system is broken
Check if you are using third party repositories. If so disable them, since they are a common source of problems.
Furthermore run the following command in a Terminal: apt-get install -f
Details: The following packages have unmet dependencies: adobereader-enu:i386: "

The apt-get install -f seems to have solved the dependency problems and now it is installing correctly.
So... problem solved. Seemed to be related to the version update, but I am not sure.
Hope the info helps.