ruby-on-rails – 无法使用Windows在rails中安装JSON宝石

我正在做一个软件包安装,所有的gems都可以正常工作,除非 JSON得到 JSON宝石我收到这个错误.

Installing json (1.6.1) with native extensions c:/Ruby192/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:55
    2:in `rescue in block in build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::E
    xtensionBuildError)

            c:/Ruby192/bin/ruby.exe extconf.rb
    checking for re.h... *** extconf.rb Failed ***
    Could not create Makefile due to some reason,probably lack of
    necessary libraries and/or headers.  Check the mkmf.log file for more
    details.  You may need configuration options.

有什么可能导致这个错误的想法？

解决方法

您正在使用Windows,所以RubyInstaller开发工具包可能会帮助您：
http://rubyinstaller.org/add-ons/devkit/

devkit安装C编译器(和其他一些东西)来编译C写入的部分.

安装它,然后重试安装宝石 – 也许使用选项–platform = ruby​​.

详情请见https://github.com/oneclick/rubyinstaller/wiki/Development-Kit