Podczas korzystania z próby aktualizacji przy użyciu apt-get update
pojawia się następujący błąd:
Err http://ppa.launchpad.net trusty/main amd64 Packages
404 Not Found
Hit http://vn.archive.ubuntu.com trusty-backports/main amd64 Packages
Err http://ppa.launchpad.net trusty/main i386 Packages
404 Not Found
Hit http://vn.archive.ubuntu.com trusty-backports/restricted amd64 Packages
Ign http://ppa.launchpad.net trusty/main Translation-en_US
Hit http://vn.archive.ubuntu.com trusty-backports/universe amd64 Packages
.......
W: Failed to fetch http://ppa.launchpad.net/upubuntu-com/web/ubuntu/dists/trusty/main/binary-amd64/Packages 404 Not Found
W: Failed to fetch http://ppa.launchpad.net/upubuntu-com/web/ubuntu/dists/trusty/main/binary-i386/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
jak to naprawić?
lsb_release -a
sudo add-apt-repository --remove ppa:jconti/gnome3