per meeting events can't be triggered

[pengxueshan]

I follow the example code, but the listeners not be triggered.
The example code:

await JitsiMeet.joinMeeting(options,
  listener: JitsiMeetingListener(onConferenceWillJoin: ({message}) {
    debugPrint("${options.room} will join with message: $message");
  }, onConferenceJoined: ({message}) {
    debugPrint("${options.room} joined with message: $message");
  }, onConferenceTerminated: ({message}) {
    debugPrint("${options.room} terminated with message: $message");
  }));

[pengxueshan]

I know the reason. I should set the serverURL to null if I use jitsi meet server.