I was trying to adapt the accepted answer to this question. How to integrate FileMerge.app into Finder?
I'm on a mac with macOS Sonoma version 14.1.1. Unfortunately I get the following error message.
Doesn't it work as described in the linked answer? May be because it is 2 years old and things have changed? How can I make it work? The Idea remains the same, i.e my goal is to select two text files in finder and compare them.