遇到的坑
1.as安裝完flutter,dart插件后,重啟,as再次提示沒有安裝dart,實際上flutter sdk中已經有dart了
解決: as需要設置flutter的目錄,設置方法: file->setting->languages&Frameworks->flutter
2.Flutter: 'package get' has not been run; 'Pub get' has not been run
解決: 
3.as提示 Waiting for another flutter command to release the startup lock
解決:
1、打開flutter的安裝目錄/bin/cache/
2、刪除lockfile文件
3、重啟AndroidStudio
4.Failed to install the following Android SDK packages as some licences have not been accepted
解決:
