Flutter FlatButton is deprecated

[saoudsalih]

flutter_calendar_carousel: ^2.2.0

../../../.pub-cache/hosted/pub.dartlang.org/flutter_calendar_carousel-2.2.0/lib/flutter_calendar_carousel.dart:483:16: Error: The method 'FlatButton' isn't defined for the class '_CalendarState'.

• '_CalendarState' is from 'package:flutter_calendar_carousel/flutter_calendar_carousel.dart' ('../../../.pub-cache/hosted/pub.dartlang.org/flutter_calendar_carousel-2.2.0/lib/flutter_calendar_carousel.dart').
  Try correcting the name to the name of an existing method, or defining a method named 'FlatButton'.
  child: FlatButton(
  ^^^^^^^^^^
  ../../../.pub-cache/hosted/pub.dartlang.org/flutter_calendar_carousel-2.2.0/lib/src/calendar_header.dart:47:32: Error: The method 'FlatButton' isn't defined for the class 'CalendarHeader'.
• 'CalendarHeader' is from 'package:flutter_calendar_carousel/src/calendar_header.dart' ('../../../.pub-cache/hosted/pub.dartlang.org/flutter_calendar_carousel-2.2.0/lib/src/calendar_header.dart').
  Try correcting the name to the name of an existing method, or defining a method named 'FlatButton'.
  Widget _headerTouchable() => FlatButton(
  ^^^^^^^^^^

[matthewrice345]

I'm running into the same issue. Check out the flutter channel master and the FlatButton has been removed now.

[matthewrice345]

PR: #310