我无法更新颤振

Question

我运行 flutter upgrade 命令。
并弹出以下错误：

ProcessException: Process exited abnormally:
error: cannot lock ref 'refs/remotes/origin/beta': unable to resolve reference 'refs/remotes/origin/beta': reference broken
From https://github.com/flutter/flutter
 ! [new branch]            beta       -> origin/beta  (unable to update local ref)
error: cannot lock ref 'refs/remotes/origin/master': unable to resolve reference 'refs/remotes/origin/master': reference broken
 ! [new branch]            master     -> origin/master  (unable to update local ref)
  Command: git fetch --tags

Answer 1

这表明您的 Flutter 存储库的本地版本已损坏。要解决这个问题，你必须彻底删除你现有的 Flutter SDK 并下载一个新的。