“Problem with MergeList” error when trying to do an update
Hi all,
I am a fresher in Ubuntu and I get some troubles with the software centre. When I attempt to set up anything, it closes and shows this error message in xterm:
"Reading package lists… Error!
W: GPG error: https://usn.ubuntu.com/ precise-security Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]>
W: GPG error: http:://us.archive.ubuntu.com precise-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]>
W: GPG error: http://us.archive.ubuntu.com precise-backports Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]>
E: Encountered a section with no Package: header
E: Problem with MergeList /var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_precise-updates_main_binary-i386_Packages
E: The package lists or status file could not be parsed or opened."
I have also tried sudo apt-get update to verify and fix corrupt packages, but same error persists.
What should I do? Please help.
Thanks.