Stream function issue its not running in the background

[sheikhsuleman123]

when i use the flutter_background_services pkg to keep streaming this function after the app is closed this is not worked to says
[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: Bad state: Stream has already been listened to.
E/flutter (14733): #0 _StreamController._subscribe (dart:async/stream_controller.dart:678:7)
E/flutter (14733): #1 _ControllerStream._createSubscription (dart:async/stream_controller.dart:828:19)
E/flutter (14733): #2 _StreamImpl.listen (dart:async/stream_impl.dart:471:9)
E/flutter (14733): #3 startFenceTrack (package:geofencing_app/screens/example_code.dart:56:100)
E/flutter (14733):

the function you want to run in the background is all-ready streaming
how can I keep running this function also in the background

[ekasetiawans]

It seems not flutter_background_service issue.