many errors like "double is not a subtype of int" or "null is not a ..."

[pjpsoft]

just create a brand new project and insert Example2 widget and you got

[VERBOSE-2:ui_dart_state.cc(209)] Unhandled Exception: type 'double' is not a subtype of type 'int?'
#0 new OneCallHourlyWeather.fromJson (package:open_weather_api_client/src/One_Call/Data_Models/one_call_hourly_weather.dart:156:10)

does the same type of error for OneCall