Nullability of reference types in type of parameter 'data' of 'bool ViewLocator.Match(object data)' doesn't match implicitly implemented member 'bool IDataTemplate.Match(object? data)' (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'data' of 'Control ViewLocator.Build(object data)' doesn't match implicitly implemented member 'Control? ITemplate<object?, Control?>.Build(object? param)' (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'exception' of 'void MemoryLogger.Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception exception, Func<TState, Exception, string> formatter)' doesn't match implicitly implemented member 'void ILogger.Log<TState>(LogLevel logLevel, EventId eventId, TState state, Exception? exception, Func<TState, Exception?, string> formatter)' (possibly because of nullability attributes).

Nullability in constraints for type parameter 'TState' of method 'MemoryLogger.BeginScope<TState>(TState)' doesn't match the constraints for type parameter 'TState' of interface method 'ILogger.BeginScope<TState>(TState)'. Consider using an explicit interface implementation instead.

Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call.

Non-nullable property 'Text' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Possible null reference return.

Nullability of reference types in value of type 'IObservable<object?>' doesn't match target type 'IObservable<object>'.

Dereference of a possibly null reference.