@lesodk: Whenever you add a signed PPA to your sources, you'll have to import the public key.
In this case you can do this with a
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0x643dc6bd56580ceb1ab4a9f63b22ab97af1cdfa9
in terminal.
@lesodk: Whenever you add a signed PPA to your sources, you'll have to import the public key.
In this case you can do this with a
sudo apt-key adv --recv-keys --keyserver keyserver. ubuntu. com 0x643dc6bd56580 ceb1ab4a9f63b22 ab97af1cdfa9
in terminal.