Board Thread:Lua Help/@comment-24473195-20140813090251/@comment-11733175-20140813125222

No, it's a stacktrace. You can output your own error messages, but I don't think they're anymore informative unless you're catching an error in the input.

On wikimedia, they have the codeeditor extension so when you click on the line number link it'll send you to the line. Unfortunately, Wikia don't have that yet so we have to make do with counting lines or using an external editor.