今天早上使用brew 安装东西的时候，没有安装成功，于是我先更新了一下brew ,返回了以下信息：
Warning: No remote 'origin' in /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core, skipping update!
Warning: No remote 'origin' in /usr/local/Homebrew/Library/Taps/homebrew/homebrew-services, skipping update!
Warning: No remote 'origin' in /usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask, skipping update!
Already up-to-date.
开始解决：
rm -rf "/usr/local/Homebrew/Library/Taps/homebrew/homebrew-core"
brew tap homebrew/core
rm -rf "/usr/local/Homebrew/Library/Taps/homebrew/homebrew-services"
brew tap homebrew/services
rm -rf "/usr/local/Homebrew/Library/Taps/homebrew/homebrew-cask"
brew tap homebrew/cask
再次运行brew update ，显示成功！
再次运行原来的安装命令，成功！
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