missing plugin issue #273

MissingPluginException(No implementation found for method checkPermission on channel simform_audio_waveforms_plugin/methods)

I am facing this issue while starting recording.
I tried everything like pod install, pod update etc
also my info.plist is all ok
android side is working perfectly but there is one more things when i come back from screen the audio still running in background.
Although this package is so amazing ..
but how can i fix this issue which is occuring while i start recording
i also have implemented permission handler to get the microphone access . but still missing plugin excetion was there...

void startRecording() async {

try {

  audioPath = await _getPath();

  if (await _audioRecorder.checkPermission()) {

  await _audioRecorder.record(path: audioPath);
  _recordDuration = 0;
  _startTimer();
  _isRecording = true;
  update();
  }
} catch (e) {
  print("exception in Recording Audio $e");
}

}

Future<String> _getPath() async {
directory = await getApplicationDocumentsDirectory();
final uniqueId = DateTime.now().millisecondsSinceEpoch;
return p.join(
  directory.path,
  'audio_$uniqueId.m4a',
);

}