I'll check as soon as I can. Right now after trying to do another build, it just keeps failing due to being unable to find the package.json. Not sure what is going on.
Edit: Tried resetting to default settings on project settings, still cannot find package.json. I'll keep trying to get to the point where it can do a build and reply back if any of the other tips will help.
Edit 2: I don't know what NW.JS version I am using, I have the tool set to auto detect and I clear the cache with each build, as that sometimes seems to help the tool find package.json.