When i add the lines to the sources file, i get an authentication error
W: GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3B22AB97AF1CDFA9
whenever i open update manager?
what can i do?
When i add the lines to the sources file, i get an authentication error
W: GPG error: http:// ppa.launchpad. net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3B22AB97AF1CDFA9
whenever i open update manager?
what can i do?