在studio中 ，打开Flutter下 android 包 单独跑安卓代码 运行报错

Executing tasks: [:app:assembleDebug] in project /Users/yunhailan/flutterProject/flutter_travel/android


> Task :app:compileFlutterBuildDebug
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


> Task :app:compileFlutterBuildDebug FAILED

FAILURE: Build failed with an exception.

* Where:
Script '/Users/yunhailan/development/flutter/packages/flutter_tools/gradle/flutter.gradle' line: 1102

* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command '/Users/yunhailan/development/flutter/bin/flutter'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.7/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 14s
1 actionable task: 1 executed