Flutter plugin not installed; Dart plugin not installed;

Android Studio 4.1明明安装了flutter插件，dart插件；

在执行flutter doctor命令检查的时候，一直提示：

Flutter plugin not installed; this adds Flutter specific functionality.

Dart plugin not installed; this adds Dart specific functionality.

小问题费力在google翻找了一番，终于找到了解决方案：

依次执行命令：

flutter channel dev

flutter upgrade

flutter doctor -v

新版的android studio4.1还未兼容flutter stable版