- Open Finder.
- Click Applications in the left-hand pane.
- Now, double-click on the Visual Studio icon.
- Click on Open, locate the Chapter9.Xamarin solution, and open it.
- The Solution Explorer should look like this:
- Now, expand the Chapter9.Xamarin.AndroidApp project node.
- In the Solution Explorer, control (^) + click on the References label and select Edit References.
- In the Edit References dialog box, click on the Projects tab.
- Check Chapter9.Xamarin.AndroidLib in the list and click OK:
- Scroll up until you reach the