criticalCrash ReportsAffects: All versions
How to Fix Crash During Terrain Generation
Fix Terrain Generation Crash by setting a world border, updating world gen mods, or using a different seed.
Quick Fix
Set a world border to prevent generating new chunks in the problematic area. Pre-generate chunks in a different direction.
Error Message
Exception generating new chunk terrain / WorldGen crashHow to Fix
1
Set a world border to avoid the problematic area
2
Try a different seed
3
Disable mod world generation features in config
4
Update or remove world generation mods
5
Pre-generate the world with Chunky to find problem areas
Common Causes
- Bug in world generation code
- Mod world generation conflicting with vanilla
- Custom world preset with invalid values
- World seed triggering edge case
Diagnostic Steps
- Note the chunk coordinates from the crash
- Set a world border to avoid that area
- If mod-related, check which mod's generation crashed
- Update the mod or disable its world gen
FAQ
How do I pre-generate my world?
Use the Chunky plugin: /chunky radius 5000 then /chunky start. It pre-generates all chunks in the radius.