用brew安裝PHP擴展時報錯nvalid attribute for formula 'homebrew/php/php71？

在我重新安裝了PHP71后
報錯內(nèi)容如下：
包括安裝reids,mongodb擴展也是，任何擴展也裝不上。

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>'