Syntax error, ',' expected

Syntax error, ',' expected

Process completed with exit code 1.

'MqttNetGlobalLogger' is obsolete: 'Please pass an instance of the IMqttNetLogger to the factory/server or client. The global logger will be deleted in the future.'

'MqttNetGlobalLogger' is obsolete: 'Please pass an instance of the IMqttNetLogger to the factory/server or client. The global logger will be deleted in the future.'

'MqttServerTlsTcpEndpointOptions.Certificate' is obsolete: 'Please use CertificateProvider with 'BlobCertificateProvider' instead.'

'MqttServerTlsTcpEndpointOptions.Certificate' is obsolete: 'Please use CertificateProvider with 'BlobCertificateProvider' instead.'

'MqttServerTlsTcpEndpointOptions.CertificateCredentials' is obsolete: 'Please use CertificateProvider with 'BlobCertificateProvider' including password property instead.'

'MqttClientDisconnectedEventArgs.ReasonCode' is obsolete: 'Please use 'Reason' instead. This property will be removed in the future!'

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.

Nullability of reference types in return type of 'IDigitalChannelInfo? SimulatedDigitalOutputPort.Channel.get' doesn't match implicitly implemented member 'IDigitalChannelInfo IPort<IDigitalChannelInfo>.Channel.get' (possibly because of nullability attributes).

Nullability of reference types in return type of 'IPin? SimulatedDigitalOutputPort.Pin.get' doesn't match implicitly implemented member 'IPin IPort<IDigitalChannelInfo>.Pin.get' (possibly because of nullability attributes).