Dereference of a possibly null reference.

'Exception.Exception(SerializationInfo, StreamingContext)' is obsolete: 'This API supports obsolete formatter-based serialization. It should not be called or extended by application code.' (https://aka.ms/dotnet-warnings/SYSLIB0051)

Dereference of a possibly null reference.

Argument of type 'IEnumerable<(Type? viewModelType, Type candidateViewType)>' cannot be used for parameter 'views' of type 'IEnumerable<(Type, Type)>' in 'Exception MvxViewModelViewLookupBuilder.ReportBuildProblem(IEnumerable<(Type, Type)> views, ArgumentException exception)' due to differences in the nullability of reference types.

Argument of type 'IEnumerable<(Type? viewModelType, Type candidateViewType)>' cannot be used for parameter 'views' of type 'IEnumerable<(Type, Type)>' in 'IEnumerable<(Type, Type)>? MvxViewModelViewLookupBuilder.FilterViews(IEnumerable<(Type, Type)>? views)' due to differences in the nullability of reference types.

Possible null reference assignment.

Possible null reference argument for parameter 'theObject' in 'void IMvxIoCProvider.RegisterSingleton<IMvxLifetime>(IMvxLifetime theObject)'.

Nullability in constraints for type parameter 'TParameter' of method 'MvxDefaultViewModelLocator.Load<TParameter>(Type, TParameter, IMvxBundle?, IMvxBundle?, IMvxNavigateEventArgs?)' doesn't match the constraints for type parameter 'TParameter' of interface method 'IMvxViewModelLocator.Load<TParameter>(Type, TParameter, IMvxBundle?, IMvxBundle?, IMvxNavigateEventArgs?)'. Consider using an explicit interface implementation instead.

#warning: 'TODO - could this move down to IMvxView level?'