Just adding so it's clear and this applies to any module. Whenever you don't have that ".modl" file you do have to build and sign it. I think somehow there are already build modules there so you can probably use them.
Typically, a module needs to be signed. If you are using an unsigned module for development purposes, there are some gateway settings needed to make that possible. Many of those things are described below. As alluded to, how to "do modules" is not really fully written down anywhere and once you go through the process a few times it becomes a lot clearer.
How do you create your own MODL file - Module Development - Inductive Automation Forum
Nick