I presume you've run `sudo apt-get update` and refreshed your repository data *before* trying to install?
Note that this is a PPA problem, not an Ubuntu problem, so I'm repointing this to the proper bug location.
I presume you've run `sudo apt-get update` and refreshed your repository data *before* trying to install?
Note that this is a PPA problem, not an Ubuntu problem, so I'm repointing this to the proper bug location.