[1.19][Crash]: Creating a new world with Lithium

[GhostIsBeHere]

BYG Version

4.0.0.1

Terrablender Version

2.2.0.161

Mod Loader

Fabric

Mod Loader Version

0.14.21

What happened?

When creating a new world, BYG crashes the game with java.lang.NullPointerException: Cannot invoke "net.minecraft.class_2680.method_26204()" because "$$10" is null. This does not happen when Lithium is not present.

crash-log

crash-2023-06-19_20.47.00-client.txt

latest.log

latest.log

Did you isolate BYG?

I tried BYG alone

Did you read and understand the above agreement?

• I agree.

[Biogene0]

I had the same issue but managed to get it working by installing a mod called "Polymer Bundled". This only fixes the crashing tho and there are still blocks that wont appear until clicked on in the game. The only fix I know of at the moment is not using lithium with BYG. Hope this helps.

[BeardedThorgi]

I've also been experiencing this and have tested every version combination of BYG and Lithium that are compatible with 1.19.3 and 1.19.4, as nearly identical errors occur in all versions. Linked below is some information I shared on a Lithium Issue report, in case it's useful to the BYG folks for further troubleshooting:

CaffeineMC/lithium-fabric#478 (comment)

Also wanted to note that Lithium 0.11.1 (the latest version) has had no major changes from 1.19.2 to 1.19.4 according to the current maintainer (2No2Name), and works without issue in BYG 2.0.1.4 in 1.19.2.

[JT122406]

Seems to be a mixin conflict
potionstudios.byg.mixin.access.client.ClientLevelAccess (byg.mixins.json)
me.jellysquid.mods.lithium.mixin.chunk.entity_class_groups.ClientWorldMixin (lithium.mixins.json)
net.fabricmc.fabric.mixin.event.lifecycle.client.ClientWorldMixin (fabric-lifecycle-events-v1.client.mixins.json)

[Timmilangschl0ng]

I had the same issue but managed to get it working by installing a mod called "Polymer Bundled". This only fixes the crashing tho and there are still blocks that wont appear until clicked on in the game. The only fix I know of at the moment is not using lithium with BYG. Hope this helps.

THANK GOD FOR PEOPLE LIKE YOU <3

[doppeltrouble]

does it work by creating the world separately and then installing lithium?
or will it also crash then?

[IAmSneak]

I found a workaround, simply setting mixin.ai.pathing=false in the lithium config fixed the issue for me