warningJava ErrorsAffects: All versions
How to Fix ArrayIndexOutOfBoundsException
Fix ArrayIndexOutOfBoundsException in Minecraft by updating the offending mod and checking for corrupted data.
Quick Fix
Update the mod shown in the stack trace to the latest version.
Error Message
java.lang.ArrayIndexOutOfBoundsExceptionHow to Fix
1
Update the mod identified in the crash report
2
If related to a specific chunk, delete that region file
3
Reset the mod's configuration
4
Report the issue to the mod developer
Common Causes
- Mod or plugin trying to access an array element that does not exist
- Corrupted chunk or entity data
- Outdated mod not handling new block/item IDs
Diagnostic Steps
- Read the stack trace to identify the mod
- Update the mod
- If chunk-related, use a tool to identify and delete the corrupted chunk region file
- Restart
FAQ
What does ArrayIndexOutOfBoundsException mean?
Code tried to access position X in an array that only has Y elements. It is a bug in the mod.