Very Strange TVOS IBDesignables Errors in iOS Package

I have developed this shared package. It works fine.

In the package test harnesses (3 iOS apps), it works great, and also, the IB storyboard renders the control (It's an IBDesignable).

However, when I include it as a package in another app (I can't share the source), I get these really weird render failure messages:
Code Block
Error: 'UIPickerView' is unavailable in tvOS

And so on. There's a bunch of "not available in tvOS" errors.

Well...DUH. It's an iOS package and utility, and leverages a lot of things like haptics.

The package explicitly states that it is iOS(12), and I can't see any indication of why my storyboard is insisting on trying to render as tvOS.

What am I missing?

Replies

Seeing the same thing. Did you resolve?
Nope. I have a feeling that Apple is abandoning IB, in favor of SwiftUI; which isn't a bad thing, except that I'm not convinced that SwiftUI is up for really big, complex projects, yet.