Ruby在windows下安装三方包出错比如jekyll时候出错“ERROR: Failed to build gem native extension.”，请问如何解决这歌错误并成功安装jekyll。另外我想知道ruby,rubygems,rubydevki,msys2之间的关系和区别，ruby初学者，请尽可能讲的通俗易懂一点，非常谢谢。
https://stackoverflow.com/questions/13767725/unable-to-install-gem-failed-to-build-gem-native-extension-cannot-load-such