OK. So it should be at a version that can launch properly. It's weird that a cache makes the tool see the json file. Looking into it.
Viewing post in Newest version of Cook Tools cannot save project data
Alright so I think I figured out how to make a build perhaps.
What I had to do was change the settings of the NW.JS from Auto Detect to Latest Version, clear the cache, and download the NW.JS again.
From there, the tool was able to find package.json and build a copy of the game.
However, the game still won't boot. There is nothing in the task manager indicating anything is running.