error: because it has overridable members that could not be loaded

Could you show the declarations of MyClass and MyOtherClass ?

When you declare the parameter out of GoogleAnalyticsSwift, do you prefix it by its class name ?

forgot to mention these 2 classes are in different frameworks:

//MyOtherClass

import GoogleAnalyticsSwift

@objc open class MyOtherClass: NSObject {

fileprivate func doSomething(tracker: GAITracker) { // this is the problematic area, if I remove the type GAITracker, it works

}

}

//MyClass

// the error occurs here

@objc public class MyClass: MyOtherClass {

}

Did you try prefixing GAITracker with its framework name ?

Did you get a resolution to this issue? I'm also seeing it when I try to subclass a class in my own private library in another module. This class A is in private library, and class B is in a separte module. Class B inherits from class A. I have declared class A to be open.

yes

Do you remember how you resolved it? Or any clues as to what causes the issue?

I'm also seeing it when I try to subclass a class in my own private library in another module. This class A is in private library, and class B is in a separte module. Class B inherits from class A. I have declared class A to be open.