Nullability of reference types in return type of 'Task<ProviderConfiguration> InMemoryProviderConfigurationRepository.GetConfigurationSettingsAsync(string name, CancellationToken cancellationToken = default(CancellationToken))' doesn't match implicitly implemented member 'Task<ProviderConfiguration?> IProviderConfigurationRepository.GetConfigurationSettingsAsync(string name, CancellationToken cancellationToken = default(CancellationToken))'.

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

Cannot convert null literal to non-nullable reference type.

Non-nullable field '_TcpClient' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field 'inputStream' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field 'outputStream' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable field '_ReceiveMassagesTask' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable event 'NewMessage' must contain a non-null value when exiting constructor. Consider declaring the event as nullable.

Non-nullable field '_ReceiveMessagesThread' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.