[Tox Support] Install Problem in Lubuntu -Need help

[roland.kaiser at posteo.eu]

Hello.

My problem is to know how is the correct way to add your repository .
Via Terminal.

So i please you.

Tell me how to add the Repository for qtox or utox.
Its about Lubuntu 16.04.4

i´ve got try this:
echo "deb 
http://download.opensuse.org/repositories/home:/antonbatenev:/tox/xUbuntu_$(lsb_release 
-rs)/ /" | sudo tee /etc/apt/sources.list.d/qtox.list

Result:
~: Culdnt find any GPG File

I got this Information from :
https://wiki.ubuntuusers.de/Tox/

Thanks so mutch.

By,
A User.