hanyi

摘要： Problem encountereddescription:.../.rvm/gems/ruby-1.9.2-p290/gems/execjs-1.2.13/lib/execjs/runtimes.rb:47:in `autodetect': Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)Solution:add the following code 阅读全文

摘要： 在安装或者运行ruby相关的程序时，有时会报ruby warning: Insecure world writable dir /usr/local/bin, mode 040777Ruby (on all Unixes, including Cygwin) warns if you try to run an external program and your $PATH contains a world-writable directory. It doesn't just check the directories on $PATH: it checks each of thei 阅读全文

摘要： 什么是RubyGem?RubyGems（简称 gems）其实就是一个rails组件的包管理器，类似与Linux下的apt-getRubyGem怎么使用列出所有已安装的gem： gem list安装：gem install卸载：gem uninstallRubyGem相关链接：http://rubygems.org/ 下载所有想要的gemhttp://docs.rubygems.org/read/book/7 介绍gem的结构等很详细的信息 阅读全文