Xamarin.Forms安卓应用在安装或更新后首次启动时崩溃

dotnet add package Xamarin.Forms

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />

using Xamarin.Essentials;

public App()
{
    try
    {
        InitializeComponent();
        MainThread.Init();
    }
    catch (Exception ex)
    {
        Log.Error("App", ex.Message);
        throw;
    }
}

using Xamarin.Forms;
using Xamarin.Essentials;

namespace MyApp
{
    public class App : Application
    {
        public App()
        {
            try
            {
                InitializeComponent();
                MainThread.Init();
                MainPage = new MainPage();
            }
            catch (Exception ex)
            {
                Log.Error("App", ex.Message);
                throw;
            }
        }

        protected override void OnStart()
        {
            // Handle when your app starts
        }

        protected override void OnSleep()
        {
            // Handle when your app sleeps
        }

        protected override void OnResume()
        {
            // Handle when your app resumes
        }
    }
}