(Obsolete) Resolving 1.31 GOTY script compilation errors for 1.30 mods

Update: another solution is now recommended to resolve different game versions problem - Unification patch for 1. 31 and 1. 31GOTY game versions. DO NOT combine both solutions, as it will result in even more merging problems in Script Merger! Uninstall instructions for this file can be found at the bottom of the page.

Since currently we have players (and modmakers) with two different versions of the game - 1. 30 (primarily Steam) and 1. 31GOTY (GOG GOTY) - there are many reports of compatibility problems as well as requests for mod updates "to the latest patch". The problem is - there is no "latest patch" and many of the modmakers do not own 1. 31GOTY version. So here are some explanations, instructions and files to resolve the problem without a need to duplicate each and every mod. At least until we get official answer from CDPR whether or not we get unified patch for all game versions.

So, let's begin.

1. Who needs this.

Players who have 1. 31GOTY version of the game and are using 1. 30 version mods. Even if you have no script compilation errors, you probably still need it, as 1. 30 mods might override 1. 31GOTY specific changes you might want to keep. If you're using texture mods and no scripts mods, you don't need this file. Update: Current non-GOTY version of the game (both Steam and GOG) is 1. 31, changes from 1. 30 are minimal and all 1. 30 mods still work with 1. 31 version of the game. Steam GOTY version is a bundle (!) and not actual 1. 31GOTY version despite greeting message in main menu! So, you only own 1. 31GOTY version of the game if you bought it on GOG and it is called GOTY (default install folder under GOG Library is named "The Witcher 3 Wild Hunt GOTY").

2. You can downgrade your scripts to 1. 30 version of the game and forget the whole thing.

To do so, download "Base 1. 30 scripts", unzip and copy "scripts" folder into your "<Path To The Witcher 3>\content\content0\" folder. If you already have

"scripts" folder under this exact path, delete it before copying unzipped one.

3. What will you loose if you decide to downgrade to 1. 30.

You'll loose random main menu (which can be compensated by installing Selectable Main Menu mod), an ability to switch alternate outfits on and off (turns out this information was wrong and you can still disable/enable alternative outfits after the downgrade) and an ability to download Turkish language pack directly from in-game menu. If these options are irrelevant for you, downgrading to 1. 30 is the best choice.

4. How to keep 1. 31GOTY version while using 1. 30 mods.

Start by downgrading your base scripts to 1. 30 (see item 2 above). It's needed for Script Merger to auto-merge all the files properly, but in the end you will still get proper 1. 31GOTY version. Then download "modGOTYDiffFiles" file a