I installed RealVNC generic in Manjaro. However, I couldn’t get it to start up like I tried with an AUR package and now I am stuck with it. How do I get to uninstall RealVNC generic. Also, how do I get the AUR package from working?
If you installed it using the script in the tarball, then it’ll be in your home directory somewhere, and then you can simply delete that.
pamac build realvnc-vnc-server
… or…
pamac build realvnc-vnc-viewer
… depending on which one you want.
The server package probably comes with a systemd .service that you need to enable. I do not know its name, but the command will be something along the lines of…
sudo systemctl enable --now realvnc-vnc-server
… or something similar enough to that.
This is what I got:
Failed to enable unit: Unit file realvnc-vnc-server.service does not exist.
Anyway, I got the AUR package working.
I did say “something similar to that”, not that it was going to be the exact same thing. 
And, is it a trade secret or are you going to tell us how? 