After installing Xcode, there are several other dependencies that need to be installed, prior to developing with Xamarin's tooling. Luckily, Xamarin has improved the experience by creating a simple all-in-one installer.
Install Xamarin by performing the following steps:
XamarinInstaller.dmgand mount the disk image.
Xamarin.appand accept any OS X security warnings that appear.
Xamarin.Mac, but that topic is not covered in this book.
The Xamarin ...