The installation of a VNC server on Linux Mint -running the Mate desktop environment- can be accomplished by following this step-by-step guide. The procedure below is scoped to run the vnc server on demand, it is, only when required.
First thing anyone should do is to trigger an update of the packages from the corresponding repositories. To accomplish this, simply run:
sudo apt-get update
I would say it should be good to upgrade the versionof the installed packages by running: