我正在尝试安装https://github.com/Worldpay/worldpay-lib-ios。在这里，我需要使用AFNetworking安装cocoapods。我的Podfile是
target 'testWorldpayLibrary' do
platform :ios, '7.0'
pod "AFNetworking", "~> 2.0"
pod 'AFNetworkActivityLogger'
end
在点击pod install命令时，我收到错误。
### Error
```
TypeError - Unable to convert Ruby value `"AFNetworking"' into a CFTypeRef.
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi/core_foundation.rb:383:in `RubyValueToCFTypeRef'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi/core_foundation.rb:402:in `block in RubyHashToCFDictionary'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi/core_foundation.rb:400:in `each'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi/core_foundation.rb:400:in `RubyHashToCFDictionary'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi/core_foundation.rb:372:in `RubyValueToCFTypeRef'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi/core_foundation.rb:402:in `block in RubyHashToCFDictionary'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi/core_foundation.rb:400:in `each'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi/core_foundation.rb:400:in `RubyHashToCFDictionary'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi/core_foundation.rb:372:in `RubyValueToCFTypeRef'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi/core_foundation.rb:402:in `block in RubyHashToCFDictionary'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi/core_foundation.rb:400:in `each'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi/core_foundation.rb:400:in `RubyHashToCFDictionary'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi.rb:159:in `ruby_hash_write_devtoolscore'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi.rb:149:in `ruby_hash_write_xcode'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist/ffi.rb:72:in `write_to_path'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/plist.rb:46:in `write_to_path'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/xcodeproj-1.3.1/lib/xcodeproj/project.rb:333:in `save'
/Users/sujit/.rvm/gems/ruby-2.2.0/gems/cocoapods-1.0.1/lib/cocoapods/installer.rb:696:in `block in write_pod_project'
/Users/sujit/.rvm/gems/ruby-2.2.0/gems/cocoapods-1.0.1/lib/cocoapods/user_interface.rb:141:in `message'
/Users/sujit/.rvm/gems/ruby-2.2.0/gems/cocoapods-1.0.1/lib/cocoapods/installer.rb:688:in `write_pod_project'
/Users/sujit/.rvm/gems/ruby-2.2.0/gems/cocoapods-1.0.1/lib/cocoapods/installer.rb:173:in `block in generate_pods_project'
/Users/sujit/.rvm/gems/ruby-2.2.0/gems/cocoapods-1.0.1/lib/cocoapods/user_interface.rb:63:in `section'
/Users/sujit/.rvm/gems/ruby-2.2.0/gems/cocoapods-1.0.1/lib/cocoapods/installer.rb:167:in `generate_pods_project'
/Users/sujit/.rvm/gems/ruby-2.2.0/gems/cocoapods-1.0.1/lib/cocoapods/installer.rb:119:in `install!'
/Users/sujit/.rvm/gems/ruby-2.2.0/gems/cocoapods-1.0.1/lib/cocoapods/command/install.rb:37:in `run'
/Users/sujit/.rvm/gems/ruby-2.2.0@global/gems/claide-1.0.0/lib/claide/command.rb:334:in `run'
/Users/sujit/.rvm/gems/ruby-2.2.0/gems/cocoapods-1.0.1/lib/cocoapods/command.rb:50:in `run'
/Users/sujit/.rvm/gems/ruby-2.2.0/gems/cocoapods-1.0.1/bin/pod:55:in `<top (required)>'
/Users/sujit/.rvm/gems/ruby-2.2.0/bin/pod:23:in `load'
/Users/sujit/.rvm/gems/ruby-2.2.0/bin/pod:23:in `<main>'
/Users/sujit/.rvm/gems/ruby-2.2.0/bin/ruby_executable_hooks:15:in `eval'
/Users/sujit/.rvm/gems/ruby-2.2.0/bin/ruby_executable_hooks:15:in `<main>'
```
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[!] Oh no, an error occurred.
Search for existing GitHub issues similar to yours:
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任何人都可以指出这里出了什么问题。
答案 0 :(得分：2)
将您的ruby版本升级到2.3.0，必须解决此问题。谢谢！
答案 1 :(得分：1)
打开终端
1.First time install Pod in your mac run this command<sudo gem install cocoapods>
2.cd <your project>
3.pod install
4.go to your project in your project open pod file add<pod 'AFNetworking', '~> 3.0'>
5.Again run the <pod install> command in terminal.
答案 2 :(得分：0)
首先从您的项目中解体，然后在您的pod文件中添加，
来源＆＃39; https://github.com/CocoaPods/Specs.git＆＃39;
平台：ios，'7.0'
pod＆＃39; AFNetworking＆＃39;，＆＃39;〜＆gt; 3.0＆＃39;
希望这会对你有所帮助。