Invalid cross-thread access using ReactiveUI RouterViewHost

Question

I am trying to learn ReactiveUI, and am currently trying to set up the Routing feature. I have been "following" the Play rxui-5-update branch on github:

https://github.com/play/play-windows/tree/rxui5-update/Play

In my MainWindow.xaml where I am setting up the RoutedViewHost I am getting the following error:

Invalid cross-thread access

...on the following line:

The same error is generated within MainWindow.xaml of the rxui5 version of Play.

Answer 1

You can't load Windows into a RoutingViewHost because it's a control. Load UserControls into the RoutingViewHost and create a top-level window whose contents are just a RoutingViewHost