Ruby on rails 安装轨道和RVm

我是新手。希望你能帮我

轨道-v

Rails is not currently installed on this system. To get the latest version, simply type:
    $ sudo gem install railsYou can then rerun your "rails" command.

KrisOrqla:~ Kris$ sudo gem install rails
Password:

Failed to load /Users/Kris/.gemrc because it doesn't contain valid YAML hash
Fetching: minitest-5.4.2.gem (100%)
Successfully installed minitest-5.4.2
Fetching: tzinfo-1.2.2.gem (100%)
Successfully installed tzinfo-1.2.2
Fetching: i18n-0.6.11.gem (100%)
Successfully installed i18n-0.6.11
Fetching: activesupport-4.1.6.gem (100%)
Successfully installed activesupport-4.1.6
Fetching: erubis-2.7.0.gem (100%)
Successfully installed erubis-2.7.0
Fetching: builder-3.2.2.gem (100%)
Successfully installed builder-3.2.2
Fetching: actionview-4.1.6.gem (100%)
Successfully installed actionview-4.1.6
Fetching: rack-1.5.2.gem (100%)
Successfully installed rack-1.5.2
Fetching: rack-test-0.6.2.gem (100%)
Successfully installed rack-test-0.6.2
Fetching: actionpack-4.1.6.gem (100%)
Successfully installed actionpack-4.1.6
ERROR:  While executing gem ... (Gem::RemoteFetcher::UnknownHostError)
    no such name (https://api.rubygems.org/gems/tilt-1.4.1.gem) ( ITS SAYS ERROR) 

我再次键入rails-v，但出现了问题

---

感谢您的rails gem尚未正确安装。当我们首先安装rails gem时，所有的依赖项gem都是先安装的，然后才是rails安装的。Rails dependency gem

tilt

未在此处正确安装。尝试分别运行

sudogem安装tilt-v='1.4.1'

，然后再次运行

sudogem安装rails

。然后检查您的gem列表中存在的

rails

gem。

我已经解决了这个问题。Ruby和Rails已成功安装。我只是按照这两个人的指示去做。（）和（）

如果您使用的是ubuntu 12.04。如果你需要关于ubuntu上ruby on rails配置的任何帮助，请点击这里。嗨，尼廷，我正在使用mac。谢谢：）我试过了，但一直没用。（加载/Users/Kris/.gemrc失败，因为它不包含有效的YAML哈希错误：在执行gem…（gem:：RemoteFetcher:：UnknownHostError）时没有这样的名称（似乎与有效的YAML哈希有关。这是怎么回事？谢谢