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warningMod ErrorsAffects: All modded versions

How to Fix Mod Registry Errors

Fix Mod Registry Errors by re-installing removed mods or accepting the loss of modded blocks and items.

Quick Fix

Re-install the mod that was removed. If you intentionally removed it, the references will be cleaned up but items/blocks will be lost.

Error Message

Registry Object not present / Missing registry entry

How to Fix

1

Re-install the mod that provided the missing registry entries

2

If intentionally removed, accept that modded blocks/items will be lost

3

Use Just Enough Resources or similar to remap registries

4

Backup the world before making changes

Common Causes

  • Mod was removed but world still contains its blocks/items
  • Mod downgraded and lost registered content
  • Registry name changed between mod versions

Diagnostic Steps

  1. Read the missing registry entry name
  2. Identify which mod provided it
  3. Re-install that mod or accept the loss
  4. Start the game

FAQ

Will my world break if I remove a mod?

Blocks and items from that mod will disappear. This can cause issues in chunks that heavily used those blocks. Always backup first.

Related Errors

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