Since the plugin is enabled in the extension's settings panel, it doesn't really do anything. So I tried to run the plugin binary directly. path as: {my-app}/Contents/PlugIns/{my-finder-appex}/Contents/MacOS/finder The output of a normal direct run is An XPC service cannot be run directly. But what's unusual is that its output is illegal hardware instruction Then the system's Console.app shows its crash report

And this problem is reproduced by the simplest demo I've built using the latest XCODE build, so it's impossible to say exactly what's wrong with my own project. So I would like to know how to fix this problem. And I saw a similar problem on the forum, https://forums.developer.apple.com/forums/thread/712076 but unfortunately no solution was given there。