promote:blog-1 fengjie$ brew install redis
Error: NaN
Please report this bug:
https://docs.brew.sh/Troubleshooting
/usr/local/Homebrew/Library/Homebrew/os/mac/xcode.rb:152:in to_i' /usr/local/Homebrew/Library/Homebrew/os/mac/xcode.rb:152:indetect_version_from_clang_version’
/usr/local/Homebrew/Library/Homebrew/os/mac/xcode.rb:144:in detect_version' /usr/local/Homebrew/Library/Homebrew/os/mac/xcode.rb:114:inversion’
/usr/local/Homebrew/Library/Homebrew/extend/os/mac/development_tools.rb:77:in default_compiler' /usr/local/Homebrew/Library/Homebrew/tab.rb:186:inempty’
/usr/local/Homebrew/Library/Homebrew/tab.rb:155:in for_formula' /usr/local/Homebrew/Library/Homebrew/formula_installer.rb:491:ineffective_build_options_for’
/usr/local/Homebrew/Library/Homebrew/formula_installer.rb:503:in display_options' /usr/local/Homebrew/Library/Homebrew/formula_installer.rb:280:ininstall’
/usr/local/Homebrew/Library/Homebrew/cmd/install.rb:350:in install_formula' /usr/local/Homebrew/Library/Homebrew/cmd/install.rb:240:inblock in install’
/usr/local/Homebrew/Library/Homebrew/cmd/install.rb:238:in each' /usr/local/Homebrew/Library/Homebrew/cmd/install.rb:238:ininstall’
/usr/local/Homebrew/Library/Homebrew/brew.rb💯in `’