[1.16.2] datapack error when joining world

[bessiq]

Fabric: 0.9.3+build.207
kubejs-fabric-1.4.5.jar
latest.log: https://pastebin.com/Mv3DzSD5

Hi there,

I've installed KubeJS for Fabric but haven't modified any scripts yet, only the loading screen color values. Whenever I try to join a singleplayer world, Minecraft says there are datapack errors. Disabling KubeJS allows me to join the world normally. I've attached a log - relevant entries seem to start around line 1761.

Thanks for any help you can provide.

Edit: updated log link because the original one was truncated.

[bessiq]

Tested with a separate profile, adding KubeJS first, then Tech Reborn, Industrial Revolution, and Astromine - one at a time, and in that order. Worlds loaded fine until I added Astromine, which then produced the datapack error. Even when only Astromine and KubeJS are enabled, the datapack error occurs.

After loading this test profile with just Astromine, I noticed there were no Astromine items in the creative menu. I then installed REI and ModMenu. Astromine was listed in ModMenu, but still showed no items in REI. So, I downgraded from astromine-1.10.7+fabric-1.16.3.jar to astromine-1.10.4+fabric-1.16.2.jar. Now I can enable KubeJS, and it appears Astromine is fully functional.

I'm not terribly surprised, as I've noticed several Fabric mods that are tagged to work with both 1.16.3 and 1.16.2, and they simply do not work with 1.16.2 until I downgrade them. Feel free to close this, as I'm just chalking it up to overly-optimistic compatibility expectations. lol

[justastranger]

You need to upgrade to the latest version of the Fabric API. Currently, mods packaged as jar-in-jars don't stop the game from starting when their requirements aren't fulfilled.

[bessiq]

I'm currently on [1.16.2] Fabric API 0.20.1 build 401, which seems to be the newest version that supports 1.16.2. I'm hoping to move to 1.16.3 soon anyway, but still waiting on CurseForge to deem us worthy to download mods in-launcher.