ios - 本地 CocoaPod 规范失败

Question

我编写了一个小型库，供多个 iOS 应用程序使用。

我已尽我所知配置了规范，并认为它应该可以工作，但事实并非如此。

这是规范:

Pod::Spec.new do |s|                                                                                                                                    
  s.name                  = 'TheLib'                                                                                                                  
  s.version               = '1.0.0'                                                                                                                     
  s.ios.deployment_target = '5.0'                                                                                                                       
  s.source_files          = 'Source/**/*.{h,m}'                                                                                                         
  s.resources             = 'Source/View/Storyboard/*.storyboard'                                                                                       
  s.dependency     'AFNetworking', '~> 1.3.3'                                                                                                           
  s.dependency     'SDWebImage', '~> 3.5'                                                                                                               
  s.dependency     'FrameAccessor', '~> 1.2.0'                                                                                                          
  s.dependency     'NSDate+TimeAgo', '~> 1.0.2'                                                                                                         
end 

根只是包含规范和源目录，后者包含 .h 和 .m 的目录。

当我运行 pod spec lint 时，我得到:

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### Report

* What did you do?

* What did you expect to happen?

* What happened instead?


### Stack

```
   CocoaPods : 0.26.2
        Ruby : ruby 1.8.7 (2012-02-08 patchlevel 358) [universal-darwin13.0]
    RubyGems : 2.0.3
        Host : Mac OS X 10.9 (13A603)
       Xcode : 5.0.1 (5A2053)
Ruby lib dir : /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib
Repositories : master - https://github.com/CocoaPods/Specs.git @ 50abc95a6583527b26b4f80c0a1e4e77052511ba
```

### Error

```
TypeError - can't dup NilClass
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/installer/pod_source_installer.rb:149:in `dup'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/installer/pod_source_installer.rb:149:in `downloader'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/installer/pod_source_installer.rb:101:in `download_source'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/installer/pod_source_installer.rb:64:in `install!'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/installer.rb:263:in `install_source_of_pod'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/installer.rb:237:in `install_pod_sources'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/user_interface.rb:73:in `titled_section'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/installer.rb:236:in `install_pod_sources'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/installer.rb:234:in `each'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/installer.rb:234:in `install_pod_sources'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/installer.rb:103:in `download_dependencies'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/user_interface.rb:52:in `section'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/installer.rb:101:in `download_dependencies'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/installer.rb:87:in `install!'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/validator.rb:209:in `install_pod'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/validator.rb:177:in `perform_extensive_analysis'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/validator.rb:173:in `each'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/validator.rb:173:in `perform_extensive_analysis'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/validator.rb:63:in `validate'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/command/spec.rb:83:in `run'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/command/spec.rb:78:in `each'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/command/spec.rb:78:in `run'
/Library/Ruby/Gems/1.8/gems/claide-0.3.2/lib/claide/command.rb:206:in `run'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/lib/cocoapods/command.rb:51:in `run'
/Library/Ruby/Gems/1.8/gems/cocoapods-0.26.2/bin/pod:19
/usr/bin/pod:23:in `load'
/usr/bin/pod:23
```

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[!] Oh no, an error occurred.

Search for existing github issues similar to yours:
https://github.com/CocoaPods/CocoaPods/search?q=can%27t+dup+NilClass&type=Issues

但是，阅读该 GitHub 页面上的 3 篇文章没有得到任何答案。就好像源没有被添加或什么的(NilClass？)。

当我在使用该库的项目目录中运行 pod install 时，使用此 podfile:

pod 'TheLib', :path => '../TheLib' 

然后打开工作区，Xcode 已正确安装所有 deps，但有一个名为“Development Pods”的目录，其中包含一个“TheLib”目录，其中只有 4 个虚拟文件。

如图所示:

Answer 1

pod spec lint 默认情况下通过从远程源下载代码来工作，而不是使用本地项目。

您发布的回溯显示异常正在方法 install_source_of_pod 中抛出，该方法随后调用 download_source——这将尝试从远程下载项目源，这是失败的，因为您尚未指定提供规范的 source 属性。

提供a valid source attribute应该修复此特定错误。