Failure to run update-manager

[nacenteno]

Update Manager fails to run. Systems displays 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/security.ubuntu.com_ubuntu_dists_precise-security_restricted_binary-i386_Packages, E:The package lists or status file could not be parsed or opened.'

Running recovery mode did not helped.

Using
-Version-
Kernel : Linux 3.2.0-29-generic (x86_64)
Compiled : #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012
C Library : Unknown
Default C Compiler : GNU C Compiler version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
Distribution : Ubuntu 12.04.1 LTS

Please advice.

[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.]

[nacenteno (nacenteno)]

that worked.

Thanks.