Typhoon Dependency Injection and Swift 3: Appdelegate isn't AnyObject

This code works with Typhoon Dependency Injection library (Obj-C) in Swift 2.3 but doesn't in Swift 3:

AppDelegate:

class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?
    var rootViewController: RootViewController?

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        // Override point for customization after application launch.

        self.window = UIWindow(frame: UIScreen.main.bounds)
        self.window?.rootViewController = self.rootViewController
        self.window?.makeKeyAndVisible()

        return true
    }
    ...
}

Application Assembly:

    public class ApplicationAssembly: TyphoonAssembly {

        public dynamic func config() -> AnyObject {
            return TyphoonDefinition.withConfigName("Configuration.plist")
        }

        public dynamic func appDelegate() -> AnyObject {
            return TyphoonDefinition.withClass(AppDelegate.self) {
                (definition) in

                definition!.injectProperty(#selector(ApplicationAssembly.rootViewController), with: self.rootViewController())
            }
        }
 ...
}

However the following error is displayed in ApplicationAssembly for any Swift 3 file expected to return 'AnyObject': "No 'withClass' candidates produce the expected contextual result type 'AnyObject'

Might anyone have an insight into the incompatibility of the Obj-c Typhoon code base with Swift 3?

Screen capture of error line

You may want to switch the return type from AnyObject to Any.

The withClass function returns an id type in Objective-C, see the source code:

+ (id)withClass:(Class)clazz block:(TyphoonBlockDefinitionInitializerBlock)block;

The id type used to be mapped to AnyObject in Swift 2, but in Swift 3 it's mapped to Any for increased flexibility. You can read more about this change here.