Universal Windows Platform workload installed. The first problem I found is that Visual Studio 2012 doesn't show IOS simulator as an option of device, I can only see 'No devices Attached' but the connection with the MAC seems to be ok, if I press the button 'Show iOS Simulator' the MAC acts as is expected and shows the simulator.log Please join us on Visual Studio Developer Community and in the Xamarin and Mono organizations on GitHub to continue tracking issues.