I am getting below error . Any suggestions to fix this?
==> Downloading and installing Homebrew... HEAD is now at 32a3e1fe2 Merge pull request #12488 from carlocab/service-on_os 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 [...] -- [...]'