I am using Tweetinvi Twitter API Wrapper to track multiple users' stream. As per requirement I have to add more tracks (@mentions) to the stream already listening.
The code I am using to stop an already running filtered stream and then resuming it back with new track added is as follows (as suggested in Tweetinvi official forum reference here)
// first time starting filtered stream in static void main()
filteredStream.StartStreamMatchingAnyCondition();
// then in another static method
filteredStream.StopStream();
filteredStream.AddTrack("@newmention");
filteredStream.StartStreamMatchingAnyCondition();
// OR also tried using ResumeStream instead of StartStreamMatchingAnyCondition above:
filteredStream.ResumeStream();
But as soon as the last line executes, it just STOPS tracking any tweets from any of already tracked users (@mentions). And after some time, the stream automatically ended up with following error:
Value can not be Null. Parameter name: source
