解决homebrewcoreisashallowcloneTo`brewupdate`,firstrun错误

今天升级了系统&＃xff0c;打算将brew也进行下更新&＃xff0c;然后就有了下面的错误提示&＃xff1a;

➜ brew update
Error: homebrew-core is a shallow clone.
To &＃96;brew update&＃96;, first run:git -C /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core fetch --unshallow
This command may take a few minutes to run due to the large size of the repository.
This restriction has been made on GitHub&＃39;s request because updating shallow
clones is an extremely expensive operation due to the tree layout and traffic of
Homebrew/homebrew-core and Homebrew/homebrew-cask. We don&＃39;t do this for you
automatically to avoid repeatedly performing an expensive unshallow operation in
CI systems (which should instead be fixed to not use shallow clones). Sorry for
the inconvenience!

其实解决方法也很简单&＃xff0c;就是把 homebrew-core给删除了就好了&＃xff1a;

rm -rf /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core;


ps: rm -rf 有风险&＃xff0c;操作需谨慎

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