Failed to download repository information

**Junior UB** · December 26th, 2012

Every time I check for updates I get a message saying:

"Failed to download repository information"

Check your Internet connection.

Details:
W:Failed to fetch http://ppa.launchpad.net/pmcenery/pp...source/Sources 404 Not Found
, W:Failed to fetch http://ppa.launchpad.net/pmcenery/pp...-i386/Packages 404 Not Found
, E:Some index files failed to download. They have been ignored, or old ones used instead.

I'm still new to Linux. What is this and how can I fix it?

**Pjotr123** · December 26th, 2012

Probably the PPA has ceased to exist. Handle PPA's with care:
https://sites.google.com/site/easyli.../fatalmistakes

Better remove this one from your sources list.

**Junior UB** · December 26th, 2012

I don't understand. Did I ruin my system? If so, can you please help me fix it?

**plucky** · December 26th, 2012

Originally Posted by Junior UB

I don't understand. Did I ruin my system? If so, can you please help me fix it?

No you didn't ruin your system.

The PPA that is giving the 404 error does not have a repository for Precise release.

See Here

Just open your Software Sources and un-tick or delete that specific repository and then either reload your Source Indexes or run

Code:

sudo apt-get update

from a terminal to reload the Index files.

Good Luck

**tak2100** · March 7th, 2013

I had a similar problem. Do you have an internet filter installed? Something like OpenDNS filtering or Cybersitter can stop your PC from updating. Whitelisting canonical.com seemed to work for me. There might be other domains that need to be whitelisted as well.