ruby-on-rails - 错误 : Could not find a valid gem 'rails' (>= 0) in any repository

Question

我在linux环境下成功安装了rvm和ruby。当我尝试安装 rail 时，我遇到了以下错误:

$ gem install rails
/home/bathakarai/.rvm/rubies/ruby-1.9.3-p385/bin/gem:4: warning: Insecure world writable dir /home/bathakarai in PATH, mode 040777
ERROR:  Could not find a valid gem 'rails' (>= 0) in any repository
ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)
    Errno::EHOSTUNREACH: No route to host - connect(2) (http://rubygems.org/latest_specs.4.8.gz)

我的 gem 版本是

1.8.25

Rvm 版本是“Wayne E. Seguin 和 Michal Papis [https://rvm.io/] 的 rvm 1.18.19(稳定版)”。

请告诉我为什么会出现此错误，请帮助我。

Answer 1

你可以使用下面的命令安装

gem install rails --source http://rubygems.org