I was following the instructions from here: http://justgetflux.com/linux.html.
After adding the PPA, when running sudo apt-get update I get these errors:
http://ppa.launchpad.net/kilian/f.lux/ubuntu/dists/saucy/main/binary-amd64/Packages 404 Not Found
http://ppa.launchpad.net/kilian/f.lux/ubuntu/dists/saucy/main/binary-i386/Packages 404 Not Found
I was following the instructions from here: http://justgetflux.com/linux.html. After adding the PPA, when running
sudo apt-get update
I get these errors: