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在 OS X 10.7.5 上使用 MacPorts 我安装了 capistrano，如下所示：

[~] > install rb-capistrano

但是当我运行 capify 时，出现以下错误：

/opt/local/lib/ruby/vendor_ruby/1.8/rubygems.rb:779:in `report_activate_error': Could not find RubyGem capistrano (>= 0) (Gem::LoadError)
from /opt/local/lib/ruby/vendor_ruby/1.8/rubygems.rb:214:in `activate'
from /opt/local/lib/ruby/vendor_ruby/1.8/rubygems.rb:1082:in `gem'
from /opt/local/bin/capify-1.8:18

这显然是 MacPorts 部署 capistrano、ruby 和 gems 的一个错误，但有什么方法可以同时解决这个问题吗？我只想让 Capistrano 工作，我根本不关心 Ruby on Rails 或任何 Ruby。

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1 回答 1

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这是我的解决方法：要么手动安装 gem，要么使用 rvm 安装它，完全绕过 MacPorts。

我选择了选项 1：使用“gem”安装 Capistrano。这当然涉及安装 MacPorts gem 并修复安装以使其实际工作：

12:10 ~project ➤ which gem
/usr/bin/gem
12:10 ~project ➤ sudo port install rb-rubygems
12:11 ~project ➤ ln -s /opt/local/libexec/ruby1.8/gem /opt/local/bin/gem
12:11 ~project ➤ sudo gem install capistrano                                         
Successfully installed highline-1.6.19
Successfully installed net-ssh-2.6.7
Successfully installed net-ssh-gateway-1.2.0
Successfully installed capistrano-2.15.4
4 gems installed
Installing ri documentation for highline-1.6.19...
Installing ri documentation for net-ssh-2.6.7...
Installing ri documentation for net-ssh-gateway-1.2.0...
Installing ri documentation for capistrano-2.15.4...
Installing RDoc documentation for highline-1.6.19...
Could not find main page README
Could not find main page README
Could not find main page README
Could not find main page README
Installing RDoc documentation for net-ssh-2.6.7...
Installing RDoc documentation for net-ssh-gateway-1.2.0...
Installing RDoc documentation for capistrano-2.15.4...
12:12 ~project ➤ which capify
/opt/local/bin/capify
12:12 ~project ➤ capify .
[add] making directory './config'
[add] writing './config/deploy.rb'
[add] writing './Capfile'
[done] capified!

如您所见，gem 通过安装到 /opt/local/（即：MacPorts）目录为我做了“正确的事”。

这已作为https://trac.macports.org/ticket/39467向 MacPorts 报告的错误

于 2013-06-19T03:25:56.737 回答