When I try to run my project Xaramin the following error is reported:
Severity Code Description Project File Line Column Suppression State Error Exception while loading assemblies: System.IO.FileNotFoundException: Could not load assembly 'System.Collections.NonGeneric, Version = 4.0.1.0, Culture = neutral, PublicKeyToken = b03f5f7f11d50a3a '. Perhaps it does not exist in the Mono for Android profile? File name: 'System.Collections.NonGeneric.dll' in Xamarin.Android.Tuner.DirectoryAssemblyResolver.Resolve (AssemblyNameReference reference, ReaderParameters parameters) in Xamarin.Android.Tasks.ResolveAssemblies.AddAssemblyReferences (ICollection'1 assemblies, AssemblyDefinition assembly, Boolean topLevel) in Xamarin.Android.Tasks.ResolveAssemblies.Execute () SojaaApp.Droid