help!!I installed Ubuntu 14.04 and then upgraded to 14.10 but when I perform sudo apt-get update
in the terminal this error occurs.
how to fix this kind of error?
I already changed the default URI in the source.list to other site/mirror but always the same error.
W: Failed to fetch http://ppa.launchpad.net/gwibber-daily/ppa/ubuntu/dists/utopic/main/binary-amd64/Packages 404 Not Found
W: Failed to fetch http://ppa.launchpad.net/gwibber-daily/ppa/ubuntu/dists/utopic/main/binary-i386/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
ryanjoseph@Satellite-L635:~$