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Mod Errors

Forge, Fabric, NeoForge, and Quilt mod loader crashes, missing dependencies, version mismatches, and conflicts.

35 errors in this category

How to Fix Forge Crash on Startup

Forge Mod Loader has found a problem with your minecraft installation

critical

How to Fix Fabric Crash on Startup

Fabric Loader has detected a critical error and cannot continue

critical

How to Fix NeoForge Crash on Startup

NeoForge has detected errors during mod loading

critical

How to Fix Missing Mod Dependency

Mod X requires Y version Z or later

warning

How to Fix Fabric API Missing

Mod requires fabric-api @ [*]

warning

How to Fix Mixin Conflict / Mixin Apply Error

Mixin apply for mod X failed / MixinApplyError

critical

How to Fix Forge Version Mismatch

Mod requires Forge version X.X.X or above, currently running Y.Y.Y

warning

How to Fix Duplicate Mod Error

Duplicate mod: X / Found duplicate mod at path

warning

How to Fix OptiFine Mod Conflicts

OptiFine incompatibility / Rendering crash with OptiFine

warning

How to Fix Invalid Mod Configuration

Failed to load config for mod X / Invalid configuration value

info

How to Fix Quilt Loader Errors

Quilt Loader could not load your game

critical

How to Fix Mod Registry Errors

Registry Object not present / Missing registry entry

warning

How to Fix Coremod Loading Errors

A coremod has been found that is not signed / Coremod loading failed

warning

How to Fix Access Transformer Errors

Invalid access transformer entry / AT parse error

warning

How to Fix Mod World Generation Crash

Exception in world generation / Feature placement crashed

critical

How to Fix Mod Rendering Crash

Rendering entity/block caused an exception

critical

How to Fix Mod Not Loading / Not Appearing

Mod not appearing in mod list

info

How to Fix Mod Resource Pack Conflicts

Resource pack conflict / Missing textures from mod

info

How to Fix Client-Server Mod Mismatch

Mod rejections: X - client has Y, server has Z

warning

How to Read Minecraft Mod Crash Reports

---- Minecraft Crash Report ----

info

How to Fix Shader Pack Crashes

Shader compilation error / Failed to link shader program

warning

How to Fix JEI / REI Loading Errors

JEI encountered an error / REI failed to load

info

How to Fix Create Mod Errors

Create mod crash / Kinetics calculation error

warning

How to Fix Sodium Crashes

Sodium failed to initialize / Rendering error with Sodium

warning

How to Fix Litematica / Schematic Errors

Failed to load schematic / Litematica rendering error

info

How to Fix Iris Shader Errors

Iris: Failed to compile shader pack / Shader compilation error

warning

How to Fix Fabric Loader Outdated

Mod requires fabric-loader version X.X.X or later

warning

How to Fix Performance Mod Conflicts

Crash with multiple optimization mods installed

warning

How to Fix Architectury API Errors

Architectury API failed to load / Missing architectury

warning

How to Fix Cloth Config API Errors

Mod requires cloth-config / Cloth Config failed to load

info

How to Fix WorldEdit Errors

WorldEdit: Maximum blocks changed limit reached / Selection too large

info

How to Fix Immersive Engineering Crashes

Immersive Engineering: Multiblock validation failed / IE rendering crash

warning

How to Fix Applied Energistics 2 Errors

AE2: Channel calculation error / ME network crash

warning

How to Fix Mod Memory Leaks

Gradual memory increase / OutOfMemoryError after extended play

warning

How to Fix Forge to NeoForge Migration Issues

Mod built for Forge not working on NeoForge

info