GPG error: http://downloads.hipchat.com Public key is not available

Recently I had an issue during installation of HipChat from Atlassian on my Ubuntu. I mean that installation went well, but I had issue with GPG keys which was :

"GPG error: http://downloads.hipchat.com stable InRelease: The following signatures couldn't be verified because the public key is not available"

So, I managed to find that WebUpd8Team provides tool called y-ppa-manager. All you have to do is install y-ppa-manager like below :

sudo add-apt-repository ppa:webupd8team/y-ppa-manager
sudo apt-get update
sudo apt-get install y-ppa-manager

and then launch this tool. Select "Advanced" and then "Try to import all missing GPG keys". This operation might take a one or two minutes, so be calm and wait for notification. After that you can run sudo apt-get update to refresh repositories.



Reference : [1] Y PPA Manager - WebUpd8Team