Flutter Error: Cannot run with sound null safety, because the following dependencies

flutter sdk 版本升级到2.0或者更高的版本后就发现运行时会报错：

Xcode's output:
↳
    Error: Cannot run with sound null safety, because the following dependencies
    don't support null safety:

     - package:flutter_swiper
     - package:flutter_page_indicator
     - package:transformer_page_view

    For solutions, see https://dart.dev/go/unsound-null-safety

    Command PhaseScriptExecution failed with a nonzero exit code
    note: Using new build system
    note: Building targets in parallel
    note: Planning build
    note: Constructing build description
    warning: Capabilities for Signing & Capabilities may not function correctly because its entitlements use a placeholder team ID. To resolve this, select a development team
    in the Runner editor. (in target 'Runner' from project 'Runner')

也就是说以上有些包不支持 safety模式。

解决方案：--no-sound-null-safety
run
flutter run --no-sound-null-safety
build
flutter build apk --no-sound-null-safety

解决方案二：
flutter_swiper_null_safety