无法 运行 stripe_sdk flutter 示例

Not able to run stripe_sdk example in flutter

我正在尝试 运行 stripe_sdk 对 flutter 的依赖并使用 firebase。但是我在 运行ning sdk 示例时遇到构建错误。以下是错误详细信息。我该如何解决?

../lib/src/ui/screens/payment_methods_screen.dart:151:39: Error: The getter 'ScaffoldMessenger' isn't defined for the class 'PaymentMethodsList'.

  • 'PaymentMethodsList' is from 'package:stripe_sdk/src/ui/screens/payment_methods_screen.dart' ('../lib/src/ui/screens/payment_methods_screen.dart'). Try correcting the name to the name of an existing getter, or defining a getter or field named 'ScaffoldMessenger'. ScaffoldMessenger.of(rootContext).showSnackBar(SnackBar( ^^^^^^^^^^^^^^^^^

根据文件 https://flutter.dev/docs/release/breaking-changes/scaffold-messenger
ScaffoldMessenger 登陆版本:1.23.0-13.0.prestable 发布:not yet

当前版本是 1.22.5 , 12/11/2020
你可以做到

flutter channel master
flutter upgrade