🔍 What is ErrorSourceFinder?

ErrorSourceFinder is a tiny, powerful debugging addon that helps you instantly identify which addon is generating Lua errors.
It works on:

No setup required — install and it automatically starts detecting error sources.

⭐ Features

When an error happens, the addon scans the file path and call stack to determine which addon folder the error came from.

Example:

[ErrorSourceFinder] Error in addon: WeakAuras

Use /esf to view the most recent 5 errors:

Thanks to a multi-interface TOC, the addon runs on Classic Era, MoP Classic, and Retail automatically.

The addon only runs when the Blizzard error handler triggers.

Works fine alongside:

Show last errors:

/esf

Drop the folder into:

Windows (Retail):

World of Warcraft/_retail_/Interface/AddOns/

Windows (Classic Era / Wrath / Cata / MoP):

World of Warcraft/_classic_/Interface/AddOns/

Enable Display Lua Errors in:
ESC → Interface → Help

This addon uses:

No taint, no frames, no saved variables — completely clean.

Nekminute

Check the following: