Hey! I just found your addon and it looks promising, but I have stumbled upon this issue. First when I run Configure on my existing project I got this:
[02:28:28.622][Error] TypeError: Cannot read property 'postProcess' of undefined [02:31:39.666][Error] Invalid steam path: E:\SteamGames\
I have corrected the Steam path, as your addon detected my Steam Games repository on another hard drive (I use D: for most games and that's where Steam is installed and E: for Arma). Anyway, I've filled the json properties and run Arma 3: Build, but then I got this error:
[Error] TypeError [ERR_INVALID_CALLBACK]: Callback must be a function. Received undefined
and I'm unable to solve this issue by myself :/