Error Message when starting Update: Failed to load the package list
- by George
Message says:
Failed to load the package list
This is a serious problem. Try again later. If this problem appears again, please report an error to the developers.
Click details, which says:
E:Type 'http://ppa.launchpad.net/madman2k/ubuntu' is not known on line 61 in source list /etc/apt/sources.list
Tried this solution:
sudo rm /var/lib/apt/lists/* -vf
sudo apt-get update
However, when entering the first command, it hits back an error:
rm: cannot remove `/var/lib/apt/lists': Is a directory
