Its intended for GameMaker Studio 1. I dont have any access to the new GameMaker 2
I have tested it on the last version of GameMaker Studio 1—version 1.4—and it does not even compile due to errors. So this is totally useless; it is so old / with bugs that the import does not work. It is like selling a source code to an app for Windows 3.0. I will have to request a refund, as it has zero value for anyone to use. You are selling an empty shell and useless broken files. Also, in the last version, GameMaker Studio 1.4, it does not compile, as it is full of bugs or outdated commands.