[V2] tauri ios init fails after having built for macOS

[brotskydotcom]

I have encountered an issue, when adding tauri to an existing project as described here, if I do the macOS tauri init and dev build before I do the iOS tauri ios init and tauri ios dev build.

This problem was originally reported in bug #9292, and others have reported the exact same problem in later comments on that bug, but the original poster then modified the bug so that it's no longer clearly about this problem. I have tracked down why the build problem exists in this scenario, found a fix, and documented both in #9292, so other folks who encounter it can find it there.

I have posted this as a Q&A, rather than opening a new bug or suggesting a doc fix, because I'm not sure whether this is a known issue in the community and I just haven't found the right docs. But I am surprised that the iOS XCode project build depends on whether a macOS build has been done first.