无法安装导轨 2.3.8答案

【问题标题】：Not able to install rails 2.3.8无法安装导轨 2.3.8
【发布时间】：2012-11-30 12:43:43
【问题描述】：

我已经在 ubuntu linux 上安装了 ruby ruby 1.8.7 (2011-02-18 patchlevel 334) [x86_64-linux]，我正在尝试安装 rails 2.3.8 gem，但我遇到了以下错误。

gem install rails --debug

 gem install rails --debug
Exception `NameError' at /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/command_manager.rb:177 - uninitialized constant Gem::Commands::InstallCommand
Exception `Errno::ETIMEDOUT' at /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/net/http.rb:560 - Connection timed out - connect(2)
Exception `Gem::RemoteFetcher::FetchError' at /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/remote_fetcher.rb:246 - Errno::ETIMEDOUT: Connection timed out - connect(2) (http://gems.rubyforge.org/latest_specs.4.8.gz)
Exception `Gem::GemNotFoundException' at /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/dependency_installer.rb:237 - Could not find a valid gem 'rails' (>= 0) locally or in a repository
ERROR:  Could not find a valid gem 'rails' (>= 0) in any repository
Exception `Errno::ETIMEDOUT' at /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/net/http.rb:560 - Connection timed out - connect(2)
Exception `Gem::RemoteFetcher::FetchError' at /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/remote_fetcher.rb:246 - Errno::ETIMEDOUT: Connection timed out - connect(2) (http://gems.rubyforge.org/latest_specs.4.8.gz)
ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)
    Errno::ETIMEDOUT: Connection timed out - connect(2) (http://gems.rubyforge.org/latest_specs.4.8.gz)
    /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/remote_fetcher.rb:246:in `fetch_path'
    /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/spec_fetcher.rb:269:in `load_specs'
    /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/spec_fetcher.rb:231:in `list'
    /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/spec_fetcher.rb:227:in `each'
    /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/spec_fetcher.rb:227:in `list'
    /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/spec_fetcher.rb:189:in `suggest_gems_from_name'
    /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/command.rb:160:in `show_lookup_failure'
    /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/commands/install_command.rb:132:in `execute'
    /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/commands/install_command.rb:115:in `each'
    /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/commands/install_command.rb:115:in `execute'
    /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/command.rb:278:in `invoke'
    /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/command_manager.rb:147:in `process_args'
    /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/command_manager.rb:117:in `run'
    /usr/local/rvm/rubies/ruby-1.8.7-p334/lib/ruby/site_ruby/1.8/rubygems/gem_runner.rb:65:in `run'
    /usr/local/rvm/rubies/ruby-1.8.7-p334/bin/gem:34

    RubyGems Environment:
  - RUBYGEMS VERSION: 1.8.24
  - RUBY VERSION: 1.8.7 (2011-02-18 patchlevel 334) [x86_64-linux]
  - INSTALLATION DIRECTORY: /usr/local/rvm/gems/ruby-1.8.7-p334
  - RUBY EXECUTABLE: /usr/local/rvm/rubies/ruby-1.8.7-p334/bin/ruby
  - EXECUTABLE DIRECTORY: /usr/local/rvm/gems/ruby-1.8.7-p334/bin
  - RUBYGEMS PLATFORMS:
    - ruby
    - x86_64-linux
  - GEM PATHS:
     - /usr/local/rvm/gems/ruby-1.8.7-p334
     - /usr/local/rvm/gems/ruby-1.8.7-p334@global
  - GEM CONFIGURATION:
     - :update_sources => true
     - :verbose => true
     - :benchmark => false
     - :backtrace => false
     - :bulk_threshold => 1000
     - :sources => ["http://gems.rubyforge.org/", "http://rubygems.org"]
  - REMOTE SOURCES:
     - http://gems.rubyforge.org/
     - http://rubygems.org

【问题讨论】：

我检查了代理设置，看来这个问题与其他事情有关
你能打印'gem environment'的输出吗
这只是看起来服务器无法连接到gems.rubyforge.org -- 您可以尝试在服务器的该 URL 上使用 curl 或 wget 以排除简单的连接问题吗？跨度>

标签： ruby-on-rails rubygems rvm

【解决方案1】：

我已经使用 gem install 的代理命令选项解决了这个问题。格式如下：

$ gem install --http-proxy http://201.187.107.19:8080 rails

注意，IP 地址和端口号是指代理。您应该搜索代理列表并使用其中的一个代理。

这是有代理的网站：http://www.cybersyndrome.net/pla5.html

另外，我必须尝试 7 或 8 个不同的代理才能成功。不放弃。

注意，您也可能会看到以下错误：

ERROR:  While executing gem ... (Gem::DependencyError)
    Unable to resolve dependencies: rails requires activesupport (= 3.2.8), actionpack (= 3.2.8), activerecord (= 3.2.8), activeresource (= 3.2.8), actionmailer (= 3.2.8), railties (= 3.2.8), bundler (~> 1.0)

不要放弃，继续使用列表中的下一个代理。祝你好运。

【讨论】：