Bad state: No element error

[0xecute]

Hello,
I have an error when trying to integrate your module.

In my pubspec.yaml:
dependencies:
flutter_country_picker: ^0.1.4

My code:
Country _country; ... CountryPicker( dense: false, showFlag: true, showDialingCode: false, showName: true, onChanged: (Country country) { setState(() { _country = country; }); }, selectedCountry: _country, ),

I got the following error:
09:43:07.055 2 info flutter.tools I/flutter (26704): ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
09:43:07.055 3 info flutter.tools I/flutter (26704): The following StateError was thrown building CountryPicker(dirty, dependencies:
09:43:07.055 4 info flutter.tools I/flutter (26704): [_LocalizationsScope-[GlobalKey#5ca4e]]):
09:43:07.055 5 info flutter.tools I/flutter (26704): Bad state: No element
09:43:07.055 6 info flutter.tools I/flutter (26704):
09:43:07.055 7 info flutter.tools I/flutter (26704): When the exception was thrown, this was the stack:
09:43:07.055 8 info flutter.tools I/flutter (26704): #0 _ListBase&Object&ListMixin.singleWhere (dart:collection/list.dart:178:5)
09:43:07.055 9 info flutter.tools I/flutter (26704): #1 Country.findByIsoCode (package:flutter_country_picker/country.dart:1793:16)
09:43:07.055 10 info flutter.tools I/flutter (26704): #2 CountryPicker.build (package:flutter_country_picker/flutter_country_picker.dart:60:19)
09:43:07.055 11 info flutter.tools I/flutter (26704): #3 StatelessElement.build (package:flutter/src/widgets/framework.dart:3885:28)

I am on the latest flutter version, channel stable.

Thank you

[humazed]

This error happened because you didn't specify an initail selection.

Country _selected = Country.SA;