I'm using Xamarin with VS2019. The contained android project has recently started to give the following build errors. platform is android 8.1. I recently upgraded from VS2017. However everything was building ok until very recently.
Severity Code Description Project File Line Suppression State Suppression State Error Can not resolve reference: System.Web, referenced by MobileApp.Shared > SSW.Api.PublicInterface > SSW.Api.Common > EntityFramework > SSW.Cache > Castle.Windsor > Castle.Core. Please add a NuGet package or assembly reference for System.Web, or remove the reference to MobileApp.Shared. MobileApp.Android.SSW
Severity Code Description Project File Line Suppression State Suppression State Error Can not resolve reference: System.Runtime.Caching, referenced by MobileApp.Shared > SSW.Api.PublicInterface > SSW.Api.Common > EntityFramework > SSW.Cache > Castle.Windsor > Castle.Core. Please add a NuGet package or assembly reference for System.Runtime.Caching, or remove the reference to MobileApp.Shared. MobileApp.Android.CAM
Severity Code Description Project File Line Suppression State Suppression State Error Can not resolve reference: System.Configuration, referenced by MobileApp.Shared > SSW.Api.PublicInterface > SSW.Api.Common > EntityFramework > SSW.Cache > Castle.Windsor > Castle.Core. Please add a NuGet package or assembly reference for System.Configuration, or remove the reference to MobileApp.Shared. MobileApp.Android.CAM
Severity Code Description Project File Line Suppression State Suppression State Error "obj\Debug\81\MobileApp.Android.dll;obj\Debug\81\MobileApp.Android.dll" is an invalid value for the "OutputAssembly" parameter of the "Csc" task. Multiple items cannot be passed into a parameter of type "Microsoft.Build.Framework.ITaskItem". MobileApp.Android
