可以帮我找到这个错误的答案，谢谢帮助我。
我想通过以下命令安装 brew：/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
结果：
==> You are using macOS 10.13.
==> We (and Apple) do not provide support for this old version.
This installation may not succeed.
After installation, you will encounter build failures with some formulae.
Please create pull requests instead of asking for help on Homebrew\'s GitHub,
Twitter or IRC. You are responsible for resolving any issues you experience
while you are running this old version.
==> This script will install:
/usr/local/bin/brew
/usr/local/share/doc/homebrew
/usr/local/share/man/man1/brew.1
/usr/local/share/zsh/site-functions/_brew
/usr/local/etc/bash_completion.d/brew
/usr/local/Homebrew
Press RETURN to continue or any other key to abort
==> /usr/bin/sudo /usr/sbin/chown biad:admin /usr/local/Homebrew
==> Downloading and installing Homebrew...
HEAD is now at 3c84e1fef Merge pull request #10381 from jonchang/fix-version-type
error: Not a valid ref: refs/remotes/origin/master
fatal: ambiguous argument 'refs/remotes/origin/master': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'
error: RPC failed; curl 56 LibreSSL SSL_read: SSL_ERROR_SYSCALL, errno 54
fatal: The remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed
Error: Fetching /usr/local/Homebrew/Library/Taps/homebrew/homebrew-core failed!
fatal: Needed a single revision
invalid upstream 'origin/master'
Failed during: /usr/local/bin/brew update --force --quiet