I was able to make a temporary fix that seems to work...
In info.json, change the "factorio_version": to "1.1"
In control.lua change lines 7 & 8 from
require("mod-gui")
local modGui = _G.mod_gui
to
local modGui = require("mod-gui")
It's allowing the game to run and I haven't run into issues in my gameplay yet.