Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am using ubuntu 12.04LTS. From past few days i am not able to update and downlaod anything. The ubuntu software center crash everytime I open it. Synaptic also got the same problem and the terminal show some sort of repository error while downloading and updating ubuntu.

share|improve this question

Most likely a problem with the repositories, such as a PPA being removed and is no longer available. Have a look at the answer to this question:

share|improve this answer
W: GPG error: precise Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <> W: Duplicate sources.list entry precise/partner i386 Packages (/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_precise_partner_binary-i3‌​86_Packages) E:Encountered a section with no Package:header E:Problem with MergeList /var/lib/apt/lists/archive.canonical.com_ubuntu_dists_precise_partner_i18n_Trans‌​lation-en E:The package lists or status file couldn't be parsed or opened – Harsh Dec 10 '12 at 10:48

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.