ubuntu

http://askubuntu.com/questions/13065/how-do-i-fix-the-gpg-error-no-pubkey

down vote accepted

By far the simplest way to handle this now is with Y-PPA-Manager (which now integrates the launchpad-getkeys script with a graphical interface).

To install it, first add the webupd8 repository for this program:
```
sudo add-apt-repository ppa:webupd8team/y-ppa-manager
```

Update your software list and install Y-PPA-Manager:

sudo apt-get update
sudo apt-get install y-ppa-manager

development note