Ruby-on-rails Gem.source_index 已弃用，请使用规范。我应该重新安装 Gem 还是 Rails？
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Gem.source_index is deprecated, use Specification. Should I re-install Gem or Rails?
提问by Kevin H
I'm learning RoR on Ubuntu 11. Got the following message when I was trying to generate an app. Did I install something incorrectly?
我正在 Ubuntu 11 上学习 RoR。当我尝试生成应用程序时收到以下消息。我是否安装了错误的东西？
$ rails generate controller Pages home contact
NOTE: Gem.source_index is deprecated, use Specification. It will be removed on or after 2011-11-01.
Gem.source_index called from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.12/lib/bundler/shared_helpers.rb:3.
NOTE: Gem.source_index is deprecated, use Specification. It will be removed on or after 2011-11-01.
Gem.source_index called from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.12/lib/bundler/source.rb:162.
NOTE: Gem::SourceIndex#each is deprecated with no replacement. It will be removed on or after 2011-11-01.
Gem::SourceIndex#each called from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.12/lib/bundler/source.rb:162.
NOTE: Gem.source_index is deprecated, use Specification. It will be removed on or after 2011-11-01.
Gem.source_index called from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.12/lib/bundler/shared_helpers.rb:84.
回答by dsaronin
This worked for me: downgrade rubygems:
这对我有用：降级rubygems：
gem update --system 1.6.2
found this advice at: Gem.source_index is deprecated, use Specification #34
在以下位置找到此建议：不推荐使用 Gem.source_index，请使用规范 #34
回答by dexter
Try this:
尝试这个：
sudo gem update bundler
This will update bundler to most recent version (currently 1.0.15). This will not generate the warning or at least in my case this was the cause of the warning.
这会将 bundler 更新到最新版本（当前为 1.0.15）。这不会产生警告，或者至少在我的情况下这是警告的原因。
回答by Koraktor
The best way to solve this is:
解决这个问题的最好方法是：
$ gem pristine --all --no-extensions
This will rebuild all gems (excluding those with native extensions) and update their gemspecs. If you don't have any gems with native extensions or you didn't use any custom compile flags on those gems you can also omit the --no-extensionsflag. Otherwise you'll have to build them seperately.
这将重建所有 gems（不包括具有本机扩展的那些）并更新它们的 gemspecs。如果您没有任何带有本机扩展的 gem，或者您没有在这些 gem 上使用任何自定义编译标志，您也可以省略该--no-extensions标志。否则，您将不得不单独构建它们。
回答by Kevin H
I tried "sudo gem update". After that, I don't see the message "Gem.source_index is deprecated, use Specification..." anymore. Yay!
我试过“sudo gem update”。之后，我再也看不到消息“Gem.source_index 已弃用，请使用规范...”。好极了！
回答by manish nautiyal
rails -v = 2.2.2
导轨-v = 2.2.2
ruby -v = 1.8.7
红宝石-v = 1.8.7
or simply do
或者干脆做
gem update --system 1.6.2
