(SOLVED) Problem with Update Manager

After last session of update, i can't access update manager, it shows following message:

Could not initialize the package information

An unresolvable problem occurred while initializing the package information.

Please report this bug against the 'update-manager' package and include the following error message:

'E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_precise_multiverse_binary-amd64_Packages, E:The package lists or status file could not be parsed or opened.'

How to restore it? Thank you!

Try doing it through terminal

sudo apt-get update
sudo apt-get dist-upgrade

If that doesn't work you can try through synaptics package manager. Click on "Mark all upgrades" and then click "apply".

If that doesn't work you can plug an ethernet cable to get internet, reboot, on the grub menu choose the recovery mode (usually 2nd option) and from the new list choose and run "dpkg". This will update the system and fix broken packages, if any.

1st two options didn't help, in both cases there was an error message. Last option couldn't use - no ethernet cable. Had to re-install os.

Hi Rene,

when running "dpkg" in recovery mode, you must first click on "Network" to activate the network otherwise you won't have an internet connection!!.

Regards Wolfman

I had the exact same issue and I found a fix w/out having to re-install.
Type the following commands into the terminal:

sudo rm /var/lib/apt/lists/* -vf
sudo apt-get update

Now you should be able to run the update manager.