Process completed with exit code 1.

Complete the task associated to this 'TODO' comment. (https://rules.sonarsource.com/csharp/RSPEC-1135)

Cannot convert null literal to non-nullable reference type.

Possible null reference return.

The variable 'ex' is declared but never used

The variable 'ex' is declared but never used

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

Cannot convert null literal to non-nullable reference type.

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

Nullability of reference types in type of parameter 'state' of 'void UdpTimedSender.SendMessageCallback(object state)' doesn't match the target delegate 'TimerCallback' (possibly because of nullability attributes).

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