Mod conflicts

StackOverflowError — two mods calling each other forever

What the log looks like

java\.lang\.stackoverflowerror

How to fix it

  1. Look for the repeating block of lines in the trace — the loop is between those classes
  2. Usually two mods patching the same method; remove one to confirm
SeverityStops the game
CategoryMod conflicts

Check your own log

Related errors

Mod conflictsAE2 Terminal Crash with REI: TextField.isFocused() NoSuchMethodErrorUpdate both Roughly Enough Items (REI) and Applied Energistics 2 (along with Cloth Config and Architectury APIMod conflictsApplied Energistics 2 Server Startup Crash (WorldData IllegalArgumentException with SpongeForge)Check your server's mods folder for SpongeForge (specifically builds around 1.12.2-2838-7.2.3) or check if youMod conflictsCannot Get Config Value Before Config Is LoadedOpen the full `logs/latest.log` or crash report and look at the `at ...` stack trace lines immediately below `Mod conflictsConcurrentModificationException — two threads touched the same listA mod bug, not a setting you can changeMod conflictsCould not execute entrypoint stage 'main'The "from mod" part names the mod whose startup threwMod conflictsCrash When Opening Inventory: IllegalArgumentException: Duplicate delegatesUpdate Iris Shaders (Fabric/Quilt) or Oculus (Forge/NeoForge) to the latest release for your Minecraft version