How to fix The Witcher 3 script compilation errors

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Geralt of Rivia riding across a green landscape in The Witcher 3.
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If you've just installed the next-gen update and want to dive into the open world, you may be disappointed to see The Witcher 3 script compilation error. It's a fairly common error message that's popping up with the updated version of CD Projekt Red's hit RPG, but you'll want to fix it to get the most out of your game.

In this guide, we'll break down how to fix the script compilation error message in The Witcher 3. With that you'll be able to harness the upgraded visuals and performance of the big patch, ready to hunt down monsters all over again.

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How do I fix The Witcher 3 script compilation errors?

The script compilation error message is one that'll pop up when trying to play The Witcher 3 with mods installed. It may not take hold instantly when diving in for the first time, but the more mods you install, the more likely it is to crop up. It occurs when mods aren't optimised for the current version of the game you're playing on, so it makes sense that this error is occurring more frequently with the new update.

In terms of a fix, your best bet is to install The Witcher 3's Unification patch. Found on the NexusMods website, it'll fittingly unify the version of your game and the mods installed, to ensure they can all run in tandem.

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At the time of writing, the most recent Unification patch is for version 1.32. Installing it should solve the problem, although given the grand upgrades of the new next-gen version, it may not iron things out entirely.

Your only other option, if the Unification patch doesn't solve the problem, is to uninstall all the mods you're currently using. It's definitely a pain - especially if you've got wacky additions like Cyberpunk 2077 attire or new mutagens - but for now it's the best way to ensure it runs stably.

That's it for our look at how to fix The Witcher 3 script compilation errors! For more on the hit RPG series, check out everything we know about the upcoming The Witcher remake.