用brew安装PHP扩展时报错nvalid attribute for formula 'homebrew/php/php71？

Question

在我重新安装了PHP71后报错内容如下：包括安装reids,mongodb扩展也是，任何扩展也装不上。 huangwhMac:php huangwh$ brew install php71-igbinary Updating Homebrew... ==> Installing php71-igbinary from homebrew/php Error: invalid attribute for formula 'homebrew/php/php71': version (nil) /usr/local/Homebrew/Library/Homebrew/formula.rb:252:in `validate_attributes!' /usr/local/Homebrew/Library/Homebrew/formula.rb:199:in `initialize' /usr/local/Homebrew/Library/Homebrew/formulary.rb:88:in `new' /usr/local/Homebrew/Library/Homebrew/formulary.rb:88:in `get_formula' /usr/local/Homebrew/Library/Homebrew/formulary.rb:275:in `factory' /usr/local/Homebrew/Library/Homebrew/dependency.rb:33:in `to_formula' /usr/local/Homebrew/Library/Homebrew/dependency.rb:96:in `block in expand' /usr/local/Homebrew/Library/Homebrew/dependency.rb:83:in `expand' /usr/local/Homebrew/Library/Homebrew/formula.rb:1473:in `recursive_dependencies' /usr/local/Homebrew/Library/Homebrew/formula.rb:1485:in `runtime_dependencies' /usr/local/Homebrew/Library/Homebrew/formula_installer.rb:416:in `runtime_requirements' /usr/local/Homebrew/Library/Homebrew/formula_installer.rb:429:in `expand_requirements' /usr/local/Homebrew/Library/Homebrew/formula_installer.rb:364:in `compute_dependencies' /usr/local/Homebrew/Library/Homebrew/formula_installer.rb:136:in `verify_deps_exist' /usr/local/Homebrew/Library/Homebrew/formula_installer.rb:129:in `prelude' /usr/local/Homebrew/Library/Homebrew/cmd/install.rb:335:in `install_formula' /usr/local/Homebrew/Library/Homebrew/cmd/install.rb:226:in `block in install' /usr/local/Homebrew/Library/Homebrew/cmd/install.rb:224:in `each' /usr/local/Homebrew/Library/Homebrew/cmd/install.rb:224:in `install' /usr/local/Homebrew/Library/Homebrew/brew.rb:95:in `<main>'