helper.call not initialized

[abhishekdana1999]

I have added helper and register it, but when i call helper.call function is not doing anything, i am using getx as i debug i found that call is not initialized not sure y is this happening.

helper.call(_number.value, voiceonly: true, mediaStream: mediaStream);

<LateInitializationError: Field '_call@85140912' has not been initialized. #0 PbxService._call (package:kasper/_services/pbx_service.dart) #1 PbxService.call (package:kasper/_services/pbx_service.dart:24:20) #2 PbxService.Eval () #3 PbxService.makeCall (package:kasper/_services/pbx_service.dart:99:7) <asynchronous suspension>>