Friday Night Funkin': Abandoned by Disney is an Friday Night Funkin' Fangame, Directed by Juddlee. It is a canon expansion/spinoff of the Abandoned by Disney series, being made with the approval of AbD's author, Slimebeast.
You must have the most up-to-date version of Haxe, seriously, stop using 4.1.5, it misses some stuff.
Follow a Friday Night Funkin' source code compilation tutorial, after this you will need to install LuaJIT.
To install LuaJIT do this: haxelib git linc_luajit https://github.com/nebulazorua/linc_luajit on a Command prompt/PowerShell
...Or if you don't want your mod to be able to run .lua scripts, delete the "LUA_ALLOWED" line on Project.xml
If you get an error about StatePointer when using Lua, run haxelib remove linc_luajit into Command Prompt/PowerShell, then re-install linc_luajit.
If you want video support on your mod, simply do haxelib install hxCodec on a Command prompt/PowerShell
otherwise, you can delete the "VIDEOS_ALLOWED" Line on Project.xml