Update Manager not working 12.04

[Tarun Das]

Whenever I try to update my ubuntu it says,

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/packages.medibuntu.org_dists_precise_free_binary-i386_Packages, E:The package lists or status file could not be parsed or opened.'

[Jörg Frings-Fürst (jff-de)]

Hallo,

medibuntu was closed.

You must remove all line with medibuntu in

/etc/apt/sources.list

and in all file from

/etc/apt/sources.list.d.

Then run

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

I close this bug.
If your error occurs feel free to reopen this bug.

[Tarun Das (tarun-d-mail)]

Thank you for your quick reply ... update manager is working now ... but it did not update anything .
I checked my version in terminal
root@tarun-G41MT-S2P:~# lsb_release -a
LSB Version: core-2.0-ia32:core-2.0-noarch:core-3.0-ia32:core-3.0-noarch:core-3.1-ia32:core-3.1-noarch:core-3.2-ia32:core-3.2-noarch:core-4.0-ia32:core-4.0-noarch
Distributor ID: Ubuntu
Description: Ubuntu 12.04.3 LTS
Release: 12.04
Codename: precise

Is this the lastest version of 12.04?

[Jörg Frings-Fürst (jff-de)]

Hi,

after

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

all updates processed.