Wiki 9Minecraft Fabric API Wiki

Fabric API — FAQ

Troubleshooting

Common issues with Fabric API usually involve version mismatches.

  • Incompatible Mod Signal: If a mod requires a newer version of Fabric API than the one installed, the game will crash on startup with a clear error message stating the required version.
  • Registry Errors: If a world fails to load with a "Registry Mismatch" error, it often means the Fabric API version on the server does not match the version on the client.
  • Crash Reports: Fabric API enhances Minecraft's crash reports by adding a "Fabric" section that lists all installed mods and their versions, making it easier to identify which mod caused a failure.