解决:flutter 版本号错误

配置好 dependencies后执行flutter pub get 报:
“The current Flutter SDK version is 0.0.0-unknown.”
解决方案: cd到你的flutter目录下执行:

git clean -xfd
git stash save --keep-index
git stash drop
git pull

如果较慢 添加如下两行在.bash_profile里

export PUB_HOSTED_URL=https://pub.flutter-io.cn
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn

别忘了source 一下
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