Необработанное исключение: Ошибка LateInitializationError: Поле «isDayTime» не было инициализировано

#flutter #dart Вопрос: [ERROR:flutter/lib/ui/ui_dart_state.cc(199)] Unhandled Exception: LateInitializationError: Field 'isDayTime' has not been initialized. E/flutter ( 5534): #0 WorldTime.isDayTime (package:world_time/services/world_time.dart) E/flutter ( 5534): #1 _ChooseLocationState.updateTime (package:world_time/pages/choose_location.dart:34:28) E/flutter ( 5534): <asynchronous suspension>…