MvvmCross Tab navigation raises exception Trying to show a tab without a TabBarViewController, this is not possible - tabs

Question

I'm trying to create tab navigation in iOS project using latest MvvmCross 5.x., but I'm getting the exception saying:
"Trying to show a tab without a TabBarViewController, this is not possible!"
Can anyone explain, what could be wrong, or is there any example simple project to show how tab navigation works using new latest MvvmCross 5.x version in iOS projects?
This is my code:
[Register("MainView")]
[MvxRootPresentation(WrapInNavigationController = true)]
public class MainView : MvxTabBarViewController<MainViewModel>
{
}
[MvxTabPresentation]
public partial class HomeView : MvxViewController<HomeViewModel>
{
}
public class IosViewPresenter : MvxIosViewPresenter
{
public override void Show(IMvxIosView view, MvxViewModelRequest request)
{
// This line gets called, but raises exception complaining that TabBarController is null.
base.Show(view, request);
}
}
[Register ("AppDelegate")]
public class AppDelegate : MvxApplicationDelegate
{
public override bool FinishedLaunching (UIApplication application, NSDictionary launchOptions)
{
Window = new UIWindow(UIScreen.MainScreen.Bounds);
var setup = new Setup(this, Window);
setup.Initialize();
var start = Mvx.Resolve<IMvxAppStart>();
start.Start();
setup.EnsureInitialized(GetType());
Window.MakeKeyAndVisible();
return true;
}
}
public class Setup : MvxIosSetup
{
protected override IMvxIosViewPresenter CreatePresenter()
{
var viewModelLoader = new MvxViewModelLoader();
Mvx.RegisterSingleton<IMvxViewModelLoader>(() => viewModelLoader);
var presenter = new IosViewPresenter((MvxApplicationDelegate)ApplicationDelegate, Window, viewModelLoader);
Mvx.RegisterSingleton<IMvxIosViewPresenter>(presenter);
return presenter;
}
}