swift – I need to ship messages from my iOS app and show them on Apple Watch

I need to ship messages from my iOS app and show them on Apple Watch, however it’s not working. Might you inform me what’s improper?

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ViewController(iOS)

import UIKit
import WatchConnectivity

class ViewController: UIViewController, WCSessionDelegate {
    func sessionDidBecomeInactive(_ session: WCSession) {
        
    }
    
    func sessionDidDeactivate(_ session: WCSession) {
        
    }
    
    @IBOutlet weak var Text1: UITextField!
    @IBOutlet weak var Text2: UITextField!
    @IBOutlet weak var Text3: UITextField!
    @IBOutlet weak var SendButton: UIButton!
    
    var viewModel = MessageListViewModel()

    override func viewDidLoad() {
        tremendous.viewDidLoad()

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

    // WCSessionDelegateのメソッド（必要に応じて実装）
    func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
        // セッションのアクティベーションが完了したときの処理
    }

    @IBAction func sendButtonTapped(_ sender: UIButton) {
        sendTextsToWatch()
    }

    non-public func sendTextsToWatch() {
        guard WCSession.default.isReachable else {
            // Apple Watchが到達不可能な場合の処理
            return
        }

        let texts = [
            "text1": Text1.text ?? "",
            "text2": Text2.text ?? "",
            "text3": Text3.text ?? ""
        ]

        WCSession.default.sendMessage(texts, replyHandler: nil) { error in
            print("Sending message failed: (error.localizedDescription)")
        }
    }
}

MessageListViewModel(iOS)

import Basis

import SwiftUI
import WatchConnectivity

remaining class MessageListViewModel: NSObject, ObservableObject {
    // 配列に変化があれば変更を通知
    @Printed var messages: [String] = []

    var session: WCSession

    init(session: WCSession = .default) {
        self.session = session
        tremendous.init()
        self.session.delegate = self
        session.activate()
    }
}

extension MessageListViewModel: WCSessionDelegate {
    func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
        if let error = error {
            print(error.localizedDescription)
        } else {
            print("The session has accomplished activation.")
        }
    }
    func sessionDidBecomeInactive(_ session: WCSession) {
    }
    func sessionDidDeactivate(_ session: WCSession) {
    }
    
}

ContentView(Apple Watch)

import SwiftUI
import WatchConnectivity
import Mix

// ContentViewの外にWCSessionWatchForReceivingクラスを移動
remaining class WCSessionWatchForReceiving: NSObject, ObservableObject, WCSessionDelegate {
    @Printed var receivedText1 = "Ready for textual content 1..."
    @Printed var receivedText2 = "Ready for textual content 2..."
    @Printed var receivedText3 = "Ready for textual content 3..."

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

    func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
        // セッションのアクティベーションが完了したときの処理
    }

    func session(_ session: WCSession, didReceiveMessage message: [String : Any]) {
        DispatchQueue.most important.async { [weak self] in
            self?.receivedText1 = message["text1"] as? String ?? "No textual content 1"
            self?.receivedText2 = message["text2"] as? String ?? "No textual content 2"
            self?.receivedText3 = message["text3"] as? String ?? "No textual content 3"
        }
    }
}

struct ContentView: View {
    @StateObject var viewModel = WCSessionWatchForReceiving()

    var physique: some View {
        VStack {
            Textual content(viewModel.receivedText1).padding()
            Textual content(viewModel.receivedText2).padding()
            Textual content(viewModel.receivedText3).padding()
        }
    }
}

WCSessionWatch(Apple Watch)

import WatchConnectivity

remaining class WCSessionWatch: NSObject {

    var session: WCSession

    init(session: WCSession  = .default) {
        self.session = session
        tremendous.init()
        self.session.delegate = self
        session.activate()
    }
}

extension WCSessionWatch: WCSessionDelegate {
    func session(_ session: WCSession, activationDidCompleteWith activationState: WCSessionActivationState, error: Error?) {
        if let error = error {
            print(error.localizedDescription)
        } else {
            print("The session has accomplished activation.")
        }
    }
}

I added a watchOS App to an current iOS app, and I adopted the settings associated to it as described on this article.
(https://qiita.com/AS_atsushi/gadgets/77c2389a7f21f15c4865)