macos - Swift app: “Missing required module” when importing framework that imports static library

Question

Here’s my setup:

1. Static library of Objective C code called Stat.
2. A Swift framework that uses code from Stat in its own classes (this framework is called Dyn). The static library and this framework are in the same Xcode project.
3. A Mac app / project that has the above project as a subproject and which links to Dyn.

In my app I have code like:

import Cocoa
import Dyn
...
SomeDynClass().doSomething()

However, when I try to compile I get an error when I import Dyn. The error is

error: missing required module ‘Stat'

It appears my app can find my framework just fine, but it somehow needs to find a module for my static library, too?

Stat has a module file that’s pretty basic:

module Stat {
    header "Stat.h"
    export *
}

I think I need to point my Mac app’s framework search paths at Stat but I don’t know why and I don’t know how. How do I solve this?

Answer 1

Select your Target, then go into Build Settings and set the Import Paths within the Swift Compiler - Search Paths section:

${SRCROOT}/Stat

Normally the module would be named the same as the library, however, I'm not sure how you've setup the directory with the module.map (it could be named Dyn perhaps, in which case the Import Path would reflect that name.

Build Settings > Swift Compiler > Search Paths:

${SRCROOT}/(directory with module.map) should resolve itself once you press enter or tab..