brew update したら「fatal: could not read Username for 'https://github.com': terminal prompts disabled」というエラーが出る
brew update fatal: could not read Username for 'https://github.com': terminal prompts disabled Error: homebrew/homebrew-versions does not exist! Run `brew untap homebrew/homebrew-versions` to remove it.
書いてあるとおり
brew untap homebrew/homebrew-versions
を実行したあと brew_ updateしたらエラー出ず実行できた