iOS无法执行WatchKit消息中的代码块

Question

使用iOS和WatchKit应用程序，并希望将数据消息从Apple Watch发送到iOS对方。我可以使链接正常工作，但是当我要求电话处理数据时，我什么也没收到。我还尝试过使用调度队列，因为电话在后台。没有didReceiveMessage内部的方法，连接将起作用。也许缺少什么？

此代码位于AppDelegate.swift中，并且会话处于活动状态：

func session(_ session: WCSession, didReceiveMessage message: [String : Any], replyHandler: @escaping ([String : Any]) -> Void) {
    DispatchQueue.main.async {
        var profile = Profile()
        do {
            let newProfile = Profile()
            profile = newProfile.getProfile()
            let completedDate = message["completed"] as? Date
            let courseID = message["course"] as? Int
            let lessonID = message["lesson"] as? Int
            try realm.write {
                let lesson = LessonAttempt()
                lesson.logLessonAttempt(course: courseID!, lesson: lessonID!, profile: profile, completedDate: completedDate, completion: { finished, error in
                    if finished == true && error == nil {
                        replyHandler(["response":true])
                    } else {
                        print("Watch log attempt: \(error)")
                        replyHandler(["response":error?.localizedDescription])
                    }
                })

            }

        } catch {
            print("\(error.localizedDescription)")
            replyHandler(["response":error.localizedDescription])
        }
    }
}

应用会话：

if WCSession.isSupported() {
        let session = WCSession.default
        session.delegate = self
        session.activate()
    }

观看应用程序发送消息-错误未返回：

if session.isReachable {
        session.sendMessage(data, replyHandler: { replyHandler in
            if let response = replyHandler["response"] as? Bool {
                print("Response from app to watch: \(response)")
            } else {
                print("Somethings wrong! \(replyHandler["response"] as! String)")
            }
        }) { error in
            print("Error: \(error.localizedDescription)")
        }
    }

谢谢