Issue detected : You launch the Artlantis installer and it sends you a message "Artlantis X is not installed on this machine, please install Artlantis X."

Cause of the issue : You are trying to install the update instead of the full version. Each Artlantis version (...4, 5, 6, 6.5) needs to be fully installed and not only updated from the previous version.

How to solve it : Download and install the Full version available on Artlantis website.