Flutter 卡在 package get 的解决办法

export PUB_HOSTED_URL=https://dart-pub.mirrors.sjtug.sjtu.edu.cn/

export FLUTTER_STORAGE_BASE_URL=https://mirrors.sjtug.sjtu.edu.cn/

git clone -b dev https://github.com/flutter/flutter.git

export PATH="$PWD/flutter/bin:$PATH"

cd ./flutter

flutter doctor