传递给MvxTargetBindingFactoryRegistry的空绑定目标

我试图使用MVVMCross绑定对话框元素，但在日志中收到以下错误消息：

MvxBind:错误：76.84传递给MvxTargetBindingFactoryRegistry的空绑定目标 MvxBind:警告：76.95无法为TextProperty的绑定创建目标绑定

绑定不起作用，但我不知道我错过了什么：

我的对话框视图控制器

partial class SearchFilterView : MvxDialogViewController
{
    public override void ViewDidLoad()
    {
        // Associate the ViewModel to this View. Must be called before the base.ViewDidLoad().
        this.Request = new MvxViewModelRequest<SearchFilterViewModel>(null, null, new MvxRequestedBy());
        base.ViewDidLoad();

        AppHelper.SetBrandings(NavigationController, TableView);

        var bindings = this.CreateInlineBindingTarget<SearchFilterViewModel>();
        Debug.Print("ViewModel: {0}", ViewModel);

        Root = new RootElement("Example Root")
        {
            new Section("Your details")
            {
                new EntryElement("Login", "Enter Login name").Bind(bindings, vm => vm.TextProperty),
                new EntryElement("Password", "Enter Password", "", true).Bind(bindings, vm => vm.PasswordProperty)
            },
            new Section("Debug Info")
            {
                new StringElement("Given Login").Bind(bindings, vm => vm.TextProperty),
                new StringElement("Given Password").Bind(bindings, vm => vm.PasswordProperty)
            }
        };
    }
}

我使用了中的示例，但我没有发现任何遗漏

如何让它工作

public class SearchFilterViewModel : MvxViewModel
{
    private string _textProperty;
    public string TextProperty
    {
        get { return _textProperty; }
        set { _textProperty = value; RaisePropertyChanged(() => TextProperty); }
    }


    private string _passwordProperty;
    public string PasswordProperty
    {
        get { return _passwordProperty; }
        set { _passwordProperty = value; RaisePropertyChanged(() => PasswordProperty); }
    }
}