MAUI 应用程序在发布模式下无法运行，但在调试模式下运行良好

Question

我的 MAUI 应用程序在模拟器中以调试模式运行时运行良好，但当我在发布模式下运行时它没有运行（在模拟器或物理设备中都不起作用）它崩溃了。

我正在使用名为CommunityToolkit.Mvvm的库来使用Mvvm架构。 我提到这个是因为我不知道这是否是导致问题的原因。

我在我的物理设备上下载了一个名为Crash Log Viewer的应用程序来检查应用程序给出的崩溃和错误，我得到了这个错误：

This information is generated from the Crash Log View application. - https://play.google.com/store/apps/details?id=com.arumcomm.crashlogviewer

Process: com.companyname.ventas_citel
PID: 12230
UID: 10313
Flags: 0x20c8be44
Package: com.companyname.ventas_citel v1 (1.0)
Foreground: No
Process-Runtime: 63820382
Build: samsung/a10sub/a10s:11/RP1A.200720.012/A107MUBU6CVG3:user/release-keys

android.runtime.JavaProxyThrowable: System.FieldAccessException: Field `Microsoft.Maui.Controls.VisualElement:ZIndexProperty' is inaccessible from method `Ventas_Citel.Views.Login.Login:InitializeComponent ()'

   at Ventas_Citel.Views.Login.Login..ctor(LoginViewModel viewModel)
   at System.Reflection.RuntimeConstructorInfo.InternalInvoke(Object , Object[] , Boolean )
   at System.Reflection.RuntimeConstructorInfo.DoInvoke(Object , BindingFlags , Binder , Object[] , CultureInfo )
   at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags , Binder , Object[] , CultureInfo )
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitConstructor(ConstructorCallSite , RuntimeResolverContext )
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSiteMain(ServiceCallSite , RuntimeResolverContext )
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitCache(ServiceCallSite , RuntimeResolverContext , ServiceProviderEngineScope , RuntimeResolverLock )
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.VisitScopeCache(ServiceCallSite , RuntimeResolverContext )
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteVisitor`2[[Microsoft.Extensions.DependencyInjection.ServiceLookup.RuntimeResolverContext, Microsoft.Extensions.DependencyInjection, Version=7.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60],[System.Object, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].VisitCallSite(ServiceCallSite , RuntimeResolverContext )
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver.Resolve(ServiceCallSite callSite, ServiceProviderEngineScope scope)
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.DynamicServiceProviderEngine.<>c_DisplayClass2_0.<RealizeService>b_0(ServiceProviderEngineScope )
   at Microsoft.Extensions.DependencyInjection.ServiceProvider.GetService(Type , ServiceProviderEngineScope )
   at Microsoft.Extensions.DependencyInjection.ServiceLookup.ServiceProviderEngineScope.GetService(Type )
   at Microsoft.Maui.MauiContext.WrappedServiceProvider.GetService(Type serviceType)
   at Microsoft.Maui.Controls.ShellContent.<>c_DisplayClass19_0.<Microsoft.Maui.Controls.IShellContentController.GetOrCreateContent>b_0()
   at Microsoft.Maui.Controls.ElementTemplate.CreateContent()
   at Microsoft.Maui.Controls.Internals.DataTemplateExtensions.CreateContent(DataTemplate self, Object item, BindableObject container)
   at Microsoft.Maui.Controls.ShellContent.Microsoft.Maui.Controls.IShellContentController.GetOrCreateContent()
   at Microsoft.Maui.Controls.Platform.Compatibility.ShellSectionRenderer.OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
   at AndroidX.Fragment.App.Fragment.n_OnCreateView_Landroid_view_LayoutInflater_Landroid_view_ViewGroup_Landroid_os_Bundle_(IntPtr , IntPtr , IntPtr , IntPtr , IntPtr )
   at Android.Runtime.JNINativeWrapper.Wrap_JniMarshal_PPLLL_L(_JniMarshal_PPLLL_L , IntPtr , IntPtr , IntPtr , IntPtr , IntPtr )
    at crc640ec207abc449b2ca.ShellSectionRenderer.n_onCreateView(Native Method)
    at crc640ec207abc449b2ca.ShellSectionRenderer.onCreateView(ShellSectionRenderer.java:42)
    at androidx.fragment.app.Fragment.performCreateView(Fragment.java:2995)
    at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:523)
    at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:261)
    at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:1840)
    at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:1764)
    at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:1701)
    at androidx.fragment.app.FragmentManager.dispatchStateChange(FragmentManager.java:2849)
    at androidx.fragment.app.FragmentManager.dispatchViewCreated(FragmentManager.java:2777)
    at androidx.fragment.app.Fragment.performViewCreated(Fragment.java:3020)
    at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:551)
    at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:261)
    at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:1840)
    at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:1764)
    at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:1701)
    at androidx.fragment.app.FragmentManager.dispatchStateChange(FragmentManager.java:2849)
    at androidx.fragment.app.FragmentManager.dispatchActivityCreated(FragmentManager.java:2784)
    at androidx.fragment.app.FragmentController.dispatchActivityCreated(FragmentController.java:262)
    at androidx.fragment.app.FragmentActivity.onStart(FragmentActivity.java:478)
    at androidx.appcompat.app.AppCompatActivity.onStart(AppCompatActivity.java:246)
    at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1435)
    at android.app.Activity.performStart(Activity.java:8231)
    at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3872)
    at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:221)
    at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:201)
    at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:173)
    at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2336)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:246)
    at android.app.ActivityThread.main(ActivityThread.java:8653)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)

好像错误在LoginViewModel中，所以我正在与您分享我的代码文件：

毛伊计划

    public static class MauiProgram
{
    public static MauiApp CreateMauiApp()
    {
        var builder = MauiApp.CreateBuilder();
        builder.UseMauiApp<App>().UseMauiCommunityToolkit();

        builder
            .UseMauiApp<App>()
            .ConfigureFonts(fonts =>
            {
                fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular");
                fonts.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold");
            });


        //views
        builder.Services.AddSingleton<Login>();
        builder.Services.AddSingleton<Inventario>();
        builder.Services.AddSingleton<Clientes>();
        builder.Services.AddSingleton<Ventas>();
        builder.Services.AddSingleton<CuentasPorCobrar>();


        //viewModels
        builder.Services.AddSingleton<LoginViewModel>();
        builder.Services.AddSingleton<InventarioViewModel>();
        builder.Services.AddSingleton<ClientesViewModel>();
        builder.Services.AddSingleton<VentasViewModel>();
        builder.Services.AddSingleton<CuentasPorCobrarViewModel>();


        // services
        builder.Services.AddHttpClient<ILoginService, LoginService>();


        return builder.Build();


    }
}

登录视图模型

public partial class LoginViewModel : BaseViewModel
{
    [ObservableProperty]
    string uuid;

    [ObservableProperty]
    private string _email;

    [ObservableProperty]
    private string _password;

    [ObservableProperty]
    private bool _isEnabled = true;

    private readonly ILoginService _loginService;
    public LoginViewModel(ILoginService loginService)
    {
        ComprobarUUID();
        _loginService = loginService;
        IsEnabled = true;
    }

    private async void ComprobarUUID()
    {
        // .. code
    }

    private async void CargarUUIDPorPrimeraVez()
    {
        // .. code
    }

    [RelayCommand]
    async void Copiar()
    {
        // .. code
    }



}

基础视图模型

 public partial class BaseViewModel : ObservableObject
    {
        [ObservableProperty]
        private bool _isBusy;

        [ObservableProperty]
        private string _title;
    }

登录.xaml.cs

public partial class Login : ContentPage
{
    public Login(LoginViewModel viewModel)
    {
        InitializeComponent();
        BindingContext = viewModel;
    }
}

我在这个应用程序中工作非常努力，我一直在通过调试模式构建这个应用程序，但今天我不得不将这个应用程序交付给团队，但这没有用。

我该如何解决这个错误？ 您需要更多代码吗？

Answer 1

您可以尝试禁用已编译的绑定，如下所示：

[XamlCompilation (XamlCompilationOptions.Skip)]
public partial class Login : ContentPage
{
    public Login(LoginViewModel viewModel)
    {
        InitializeComponent();
        BindingContext = viewModel;
    }
}

Answer 2

从 xaml 中删除 zIndex。并使用替代的任何方法。 我很难找出导致发布模式崩溃的原因。 这就是解决方法。 不能相信毛伊岛正在生产中。

Answer 3

如果您在 iOS 物理设备上发现问题，则可能与此有关： https://github.com/do.net/maui/issues/12316