Homebrew致命错误：需要一个单一修订版本（MacOs Sierra）

Question

我不确定这个问题是否与升级到MacOs Sierra有关，但自从那时起，当我运行“brew update”时就会出现这个错误。

→ brew update
Checking out v1.0.0 in /usr/local/Homebrew/Library/Taps/caskroom/homebrew-cask...
To checkout master in /usr/local/Homebrew/Library/Taps/caskroom/homebrew-cask run:
  'cd /usr/local/Homebrew/Library/Taps/caskroom/homebrew-cask && git checkout master
fatal: Cannot update paths and switch to branch 'v1.0.0' at the same time.
Did you intend to checkout 'refs/tags/1.0.0' which can not be resolved as commit?
fatal: Needed a single revision
invalid upstream refs/tags/1.0.0
Checking out v1.0.0 in /usr/local/Homebrew/Library/Taps/dart-lang/homebrew-dart...
To checkout master in /usr/local/Homebrew/Library/Taps/dart-lang/homebrew-dart run:
  'cd /usr/local/Homebrew/Library/Taps/dart-lang/homebrew-dart && git checkout master
fatal: Cannot update paths and switch to branch 'v1.0.0' at the same time.
Did you intend to checkout 'refs/tags/1.0.0' which can not be resolved as commit?
fatal: Needed a single revision
invalid upstream refs/tags/1.0.0
Checking out v1.0.0 in /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core...
To checkout master in /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core run:
  'cd /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core && git checkout master
fatal: Cannot update paths and switch to branch 'v1.0.0' at the same time.
Did you intend to checkout 'refs/tags/1.0.0' which can not be resolved as commit?
fatal: Needed a single revision
invalid upstream refs/tags/1.0.0

我尝试运行

cd $(brew --prefix) && git fetch && git reset --hard origin/master

但它给我这个错误：

fatal: Not a git repository (or any of the parent directories): .git

- Martin van Houte

---

我也遇到了这个问题，但我还没有升级到Sierra。不过，我已经升级到Brew 1.0。 - SCdF

Answer 1

我在升级到 Sierra 后遇到了同样的问题。

除了显示 Homebrew 安装路径的 brew --prefix，还有一个显示其 .git 目录所在位置的命令 brew --repository。

man brew 中指出：“对于标准安装，前缀和存储库是相同的目录”。但要么是该手册不是最新版本，要么就是我的安装不是“标准”的。因为我的 prefix 是 /usr/local，而我的 repository 是 /usr/local/Homebrew。

使用相同的命令，但加上 cd $(brew --repository) 对我有用：

cd $(brew --repository) && git fetch && git reset --hard origin/master

- thomasd

---

完整修复：cd $(brew --prefix)/Homebrew && git fetch && git reset --hard origin/master。（注：这是针对 Homebrew 的命令，用于修复可能出现的各种问题。） - Iurii Tkachenko

AKA brew --repository - robertklep

谢谢@thomasd，这解决了我的问题！ - Martin van Houte

Homebrew 最近（本周）从 /usr/local 迁移到了 /usr/local/Homebrew，文档可能仍然过时。 - Ben XO

这也会破坏那些在(brew --prefix)中源代码完整性的脚本。 - orome

Answer 2

接受的答案对我没有用。有效的方法是卸载 homebrew 并重新安装它：

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
brew analytics off

- herrtim

Answer 3

这个命令对我解决了错误：

```html

这个命令对我解决了错误：

```

git -C $(brew --repository homebrew/core) checkout master

- Madhura Ambre

Answer 4

卸载

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/uninstall.sh)"

然后重新安装。

- HappyFace

Answer 5

对我来说，没有什么真正有效的方法，我不得不采取卸载和重新安装Brew的方法：

# change to home directory to avoid other errors later
cd ~

# uninstall brew
rm -rf /usr/local/Cellar /usr/local/.git && cd ~ && brew cleanup

 # reinstall brew
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

- a20