Xamarin: Failed to create JavaTypeInfo for class … due to System.NullReference Exception

In my Xamarin\Android project, I wanted to use a WebView and add a JavascriptInterface to enable communication between my app and the JavaScript inside the WebView. I found an example here which was quite easy and straight forward. To explore things a little bit more, I wanted to add a JavaScript-callable method that accepts a parameter of type System.Object, call it with random objects from JavaScripts and see what these JavaScript objects transform to in the .NET world. Continue reading