如何解决离子性服务错误“正在等待与离子性应用脚本的连接...”？

Question

离子cli ionic serve升级后无法正常工作。它显示以下消息。

[app-scripts]       L28:    public toastCtrl: ToastController,
[app-scripts]       L29:    private firebaseAnalytics: FirebaseAnalytics
[app-scripts]       L30:  ) {
[app-scripts] [10:18:39]  lint finished in 23.25 s
[INFO] Waiting for connectivity with ionic-app-scripts...
[INFO] Waiting for connectivity with ionic-app-scripts...
[INFO] Waiting for connectivity with ionic-app-scripts...
[INFO] Waiting for connectivity with ionic-app-scripts...

我正在使用以下配置。

当我使用npm run ionic:serve时，它可以正常工作。