CocoaPods: Pod update/install 出错
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### Report
* What did you do?
* What did you expect to happen?
* What happened instead?
### Stack
```
CocoaPods : 0.29.0
Ruby : ruby 2.1.1p76 (2014-02-24 revision 45161) [x86_64-darwin13.0]
RubyGems : 2.2.2
Host : Mac OS X 10.9.2 (13C64)
Xcode : 5.0.2 (5A3005)
Ruby lib dir : /Users/yilongxie/.rvm/rubies/ruby-2.1.1/lib
Repositories : master - https://github.com/CocoaPods/Specs.git @ 5dd666a63fa7fba4421d7f8375a76e8a8742df1e
```
### Podfile
```ruby
platform :ios, '6.0'
pod 'AFNetworking'
```
### Error
```
Psych::SyntaxError - (/Users/yilongxie/.cocoapods/repos/master/CocoaPods-version.yml): mapping values are not allowed in this context at line 3 column 4
/Users/yilongxie/.rvm/gems/ruby-2.1.1/gems/psych-2.0.4/lib/psych.rb:370:in `parse'
/Users/yilongxie/.rvm/gems/ruby-2.1.1/gems/psych-2.0.4/lib/psych.rb:370:in `parse_stream'
/Users/yilongxie/.rvm/gems/ruby-2.1.1/gems/psych-2.0.4/lib/psych.rb:318:in `parse'
/Users/yilongxie/.rvm/gems/ruby-2.1.1/gems/psych-2.0.4/lib/psych.rb:245:in `load'
/Users/yilongxie/.rvm/gems/ruby-2.1.1/gems/psych-2.0.4/lib/psych.rb:464:in `block in load_file'
/Users/yilongxie/.rvm/gems/ruby-2.1.1/gems/psych-2.0.4/lib/psych.rb:464:in `open'
/Users/yilongxie/.rvm/gems/ruby-2.1.1/gems/psych-2.0.4/lib/psych.rb:464:in `load_file'
/Users/yilongxie/.rvm/gems/ruby-2.1.1@global/gems/cocoapods-0.29.0/lib/cocoapods/sources_manager.rb:261:in `version_information'
/Users/yilongxie/.rvm/gems/ruby-2.1.1@global/gems/cocoapods-0.29.0/lib/cocoapods/sources_manager.rb:222:in `repo_compatible?'
/Users/yilongxie/.rvm/gems/ruby-2.1.1@global/gems/cocoapods-0.29.0/lib/cocoapods/sources_manager.rb:281:in `master_repo_functional?'
/Users/yilongxie/.rvm/gems/ruby-2.1.1@global/gems/cocoapods-0.29.0/lib/cocoapods/command.rb:39:in `parse'
/Users/yilongxie/.rvm/gems/ruby-2.1.1@global/gems/claide-0.4.0/lib/claide/command.rb:186:in `parse'
/Users/yilongxie/.rvm/gems/ruby-2.1.1@global/gems/cocoapods-0.29.0/lib/cocoapods/command.rb:38:in `parse'
/Users/yilongxie/.rvm/gems/ruby-2.1.1@global/gems/claide-0.4.0/lib/claide/command.rb:211:in `run'
/Users/yilongxie/.rvm/gems/ruby-2.1.1@global/gems/cocoapods-0.29.0/lib/cocoapods/command.rb:51:in `run'
/Users/yilongxie/.rvm/gems/ruby-2.1.1@global/gems/cocoapods-0.29.0/bin/pod:24:in `<top (required)>'
/Users/yilongxie/.rvm/rubies/ruby-2.1.1/bin/pod:23:in `load'
/Users/yilongxie/.rvm/rubies/ruby-2.1.1/bin/pod:23:in `<main>'
/Users/yilongxie/.rvm/gems/ruby-2.1.1/bin/ruby_executable_hooks:15:in `eval'
/Users/yilongxie/.rvm/gems/ruby-2.1.1/bin/ruby_executable_hooks:15:in `<main>'
```
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[!] Oh no, an error occurred.
Search for existing github issues similar to yours:
https://github.com/CocoaPods/CocoaPods/search?q=%28%2FUsers%2Fyilongxie%2F.cocoapods%2Frepos%2Fmaster%2FCocoaPods-version.yml%29%3A+mapping+values+are+not+allowed+in+this+context+at+line+3+column+4&type=Issues
If none exists, create a ticket, with the template displayed above, on:
https://github.com/CocoaPods/CocoaPods/issues/new
Don't forget to anonymize any private data!
前段时间还可pod update 呢，昨天有个包更新结果一试不行了，于是在网上搜了一下：
大致步骤如下：
更新 CocoaPods 升级ruby
重装 $ sudo gem install cocoapods
结果还是不行，google 了一上发现有不少朋友也遇到过类似的问题，仔细想了一下这个问题应该很好解决可能是自己走错了路；于是又把问题理了一下，依照 https://github.com/CocoaPods/CocoaPods/issues/1853 提到的
重装 $ sudo gem install cocoapods
结果还是不行，google 了一上发现有不少朋友也遇到过类似的问题，仔细想了一下这个问题应该很好解决可能是自己走错了路；于是又把问题理了一下，依照 https://github.com/CocoaPods/CocoaPods/issues/1853 提到的
>>>
Ok the problem for me was that (presumably) the update tried to merge CocoaPods-version.yml so in the end it looked like this.
---
<<<<<<< HEAD
min: 0.18.1
=======
min: 0.29.0
>>>>>>> 8365d0ad18508175bbde31b9dd2bdaf1be49214f
last: 0.29.0 I had the same problem with a private cocoaPod, I updated to 0.29 and I continued with the same problem.
Maybe it's very destructive but for me it was solved with:
$ sudo rm -fr ~/.cocoapods/repos/master
$ pod setuppod setup 的时候又遇到了问题，就是半天没反应，我的网络已是经FQ的肯定没问题取消好几次，一直显示：
$ pod setup
Setting up CocoaPods master repo
当时感觉可能还是没有解决，刚好还有一台MacBook Pro ，于是继续关注这台电脑，同时在另一台电脑上继续找方法；
等待永远都是漫长的，差不多过了一个多小时，
$ pod setup
Setting up CocoaPods master repo
Setup completed (read-only access)
终于看到了希望,赶紧到项目目录下进行测试
pod update
Analyzing dependencies >>>>>看到这句我就知道终于弄好了
在另一台电脑上执行的命令：pod setup 在经历过漫长的等待后也终于有了正确的结果，所以大家如果在这一步卡住了一定要耐心；
解决该问题搜索过的感觉比较好的内容给大家分享一下：
http://code4app.com/article/cocoapods-install-usage CocoaPods安装和使用教程
http://blog.csdn.net/wzzvictory/article/details/18737437 CocoaPods详解之----使用篇
http://blog.csdn.net/liufan321/article/details/17572121
iOS程序依赖管理的工具——CocoaPods
http://blog.csdn.net/cssmhyl/article/details/20555107
使用cocoapods时，pod setup出错解决https://github.com/CocoaPods/CocoaPods/issues/1853 I
just updated cocoapods to 0.29 (also tested with 0.28) from a super old
version (can't remember which one) and now I run into the following
error message when I execute 'pod instal'l.
原文地址http://linglong117.blog.163.com/blog/static/27714547201421225958/
