Error in Game Dev Tycoon

This is the Error i get please help.
Error Uncaught error. Please report this to support@greenheartgames.com: Uncaught TypeError: Cannot read property ‘isCustom’ of null (file:///C:/Program%20Files%20(x86)/Steam/steamapps/common/Game%20Dev%20Tycoon/compressed/codeNw.js:1103) Please restart the game.

Enabled Mods:

CheatMod by kristof1104
Game Dev Tycoon Mod API by support@greenheartgames.com
UltimateLib by Francesco Abbattista and Chad Keating
Expansion Pack Mod by DzjengisKhan
CompetitorMod by kristof1104 and DzjengisKhan
Game Version: 1.5.25

Platform: Windows

Distribution: Steam

Don’t use UltimateLib or any mods that require UltimateLib.

Why? and how would i uninstall it. I’ve tried doing the Unsub to the mod and Taking it off from the mod section. Could u help me with this?

@chizbejoe

@sonnyholman UL is outdated, mod devs aren’t supporting mod anymore.
Just turn off mod, restart game and you’re free to go!

okay well then it says like these certain mods might Harm ur current Thing

I’m afraid to say that most mods for GDT are outdated. UltimateLib is outdated, and any mods that use it are outdated.

Goes to your mods folder:
C:\Program Files (x86)\Steam\steamapps\common\Game Dev Tycoon\mods
and delete all files in the folder.

Then un-subscribe from all the mods you’ve subscribed too and then delete all the files in:
C:\Program Files (x86)\Steam\steamapps\common\Game Dev Tycoon\mods_ws

If your save has already been corrupted by the mods then there is nothing you can do. Once something is corrupted, it’s corrupted. It’s also worth reading the modding F.A.Q.

okay well can i keep some mods for my self that i acuttaly want?

I did that still says i have to get one of the Mods again

Delete your Game Dev Tycoon Folder and reïnstall the game. And like @chizbejoe says, if your save file is corrupted by the mods you used, it’s corrupted.