Warning: You are using macOS 12.
We do not provide support for this pre-release version.
You will encounter build failures with some formulae.
Please create pull requests instead of asking for help on Homebrew's GitHub,
Twitter or any other official channels. You are responsible for resolving
any issues you experience while you are running this
pre-release version.
解决：cd "$(brew --repo)" && git fetch && git reset --hard origin/master && brew update
等待的时间可能稍微长些。成功后显示：
You have **2** outdated formulae installed.
You can upgrade them with **brew upgrade**
or list them with **brew outdated**.
根据提示 brew upgrade 即可。
