Xamarin build error Exception while loading assemblies: System.IO.FileNotFoundException

Question

always i try to Build my Xamarin app i get this error. And i dont know why. I use the System.Security.dll of .Net Framework 4 and i though this should work. Thanks.

Answer 1

Add the missing .dll to your project(s).

Right click on the References folder -> Add Reference -> Browse -> C:\Windows\Microsoft.NET\Framework64\\ ->

Clean your project and rebuild