I was trying to make a stream function that returns LocationData as stream. But I got this error saying

A yielded value of type 'Stream<LocationData>' must be assignable to 'LocationData'

Stream<LocationData>  getCoordinates() async* {
      yield Location.instance.onLocationChanged;//error shows here
}

CodePudding user response：

According to your error message, you are missing a * after your yield to actually yield each item in your stream:

Stream<LocationData>  getCoordinates() async* {
      yield* Location.instance.onLocationChanged;
}

Please note that this is an educated guess, next time it would really help to have more code.