I have a user of my app that's using iOS 7.1.x and my app isn't working on their phone. The app works on iOS 8.x I tried searching for ways to set the minimum iOS version in Visual Studio, but came up with nothing. This is the only thing I found, but it doesn't give any detail on how to set it: http://developer.xamarin.com/guides/ios/advanced_topics/compiling_for_different_devices/
How can I set the minimum iOS version for my app in Visual Studio?