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Proxy環境でgem install

Last updated at Posted at 2014-05-09

gem installはProxy環境でエラーが出る

学校でSassをインストールしようとしたら、プロキシのせいでエラーが出る。
環境は以下の通り。

  • OS:Windows8
  • msysgit
  • Ruby 2.0.0p451
  • gem 2.2.2

エラーメッセージ

$ gem install sass
ERROR:  Could not find a valid gem 'sass' (>= 0), here is why:
          Unable to download data from https://rubygems.org/ - Errno::ETIMEDOUT:
 A connection attempt failed because the connected party did not properly respon
d after a period of time, or established connection failed because connected hos
t has failed to respond. - connect(2) (https://api.rubygems.org/latest_specs.4.8
.gz)

対応策

参考:プロキシが邪魔してRubyGemでインストールできないとき

概ねリンク先の通りですが、ユーザー名とパスワードが必要だったので以下のように入力。

$ gem install パッケージ名 -r -p http://username:password@proxy.hostname:port

これでOK。
※1 username,password,proxy.hostname,portなどはご自身の環境に合わせて変更してください。
※2 ユーザ名に@を含む場合、エスケープする必要があるそうです
(参考:gem install実行時、Proxyサーバ認証ユーザに @ を含む場合のTips

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