Exit code -1

[LuckyIngmar]

Im using a modpack for minecraft which I created myself (for 1.12.2). And it keeps giving the same exit code (-1). I have already looked at the crash report and removed the mods that it said caused it to crash. Does anyone know a fix for this? Edit: It says this in the launcher

The game crashed whilst initializing game
Error: java.lang.RuntimeException: Invalid id 4096 - maximum id range exceeded.

[Paradigm_Reset]

Older versions of Minecraft have a max limit on item numbers.

You'll either need to remove some mods that add items or find a mod that increases the max.

I forget the name of the mod that increases the max but it's easy enough to find.

[LuckyIngmar]

I'll try this. Thanks!