https://launchpad.net/~psi-plus/+archive/ppa/+files/ - Error: Page not found
in http://ppa.launchpad.net/psi-plus/ppa/ubuntu/pool/main/p/psi-plus/ ?
https:/ /launchpad. net/~psi- plus/+archive/ ppa/+files/ - Error: Page not found
in http:// ppa.launchpad. net/psi- plus/ppa/ ubuntu/ pool/main/ p/psi-plus/ ?