使用sudo gem install在rails 4上安装错误

Question

最近升级到os x，installed ruby 2.0尝试安装rails 4

  

Neils-MacBook-Pro：代码neilpatel $ rails --version

此系统上当前未安装Rails。要获取最新版本，只需输入：

$ sudo gem install rails

然后您可以重新运行“rails”命令。

Neils-MacBook-Pro:code neilpatel$ sudo gem install rails 

Fetching: i18n-0.6.5.gem (100%) Successfully installed i18n-0.6.5 Fetching: multi_json-1.8.2.gem (100%) Successfully installed multi_json-1.8.2 ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)
Errno::ETIMEDOUT: Operation timed out - connect(2) (https://rubygems.org/gems/tzinfo-0.3.38.gem)

Answer 1

gem install rails --version=4.0.0.rc1 

应在安装gem之前指定rails的版本。

如果您的ruby version is 2.0.0然后安装rails 4 gem。