Everything in Xamarin is underlined with red error squiggles, and I have no idea why

Hi all,

I have a peculiar error that’s preventing me from getting anything done. Most things in Xamarin are underlined in red, and they show the various error messages below. At the same time, the code runs fine. I’m sure there’s just a setting somewhere I haven’t got correctly configured, but I have no idea what it is. Can anybody shed light on this?

I’ve never used Xamarin. Have you tried Visual Studio?