今天用pod安装第三方组件报错:
### Report
* What did you do?
* What did you expect to happen?
* What happened instead?
### Stack
```
CocoaPods : 0.28.0
Ruby : ruby 2.0.0p247 (2013-06-27 revision 41674) [universal.x86_64-darwin13]
RubyGems : 2.1.11
Host : Mac OS X 10.9.2 (13C64)
Xcode : 5.1.1 (5B1008)
Ruby lib dir : /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib
Repositories : master - https://github.com/CocoaPods/Specs.git @ c3d9fcccd2e25f3db800c9467c5425c94c32907d
```
### Podfile
```ruby
platform :ios, '7.0'
pod 'DLAlertView'
pod 'FMDB'
pod 'THProgressView', '~> 1.0'
pod "Cordova", "~> 3.1.0"
pod "AFNetworking", "~> 2.0"
```
### Error
```
Psych::SyntaxError - (/Users/apple/.cocoapods/repos/master/CocoaPods-version.yml): mapping values are not allowed in this context at line 3 column 4
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/psych.rb:205:in `parse'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/psych.rb:205:in `parse_stream'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/psych.rb:153:in `parse'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/psych.rb:129:in `load'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/psych.rb:299:in `block in load_file'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/psych.rb:299:in `open'
/System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/psych.rb:299:in `load_file'
/Library/Ruby/Gems/2.0.0/gems/cocoapods-0.28.0/lib/cocoapods/sources_manager.rb:248:in `version_information'
/Library/Ruby/Gems/2.0.0/gems/cocoapods-0.28.0/lib/cocoapods/sources_manager.rb:209:in `repo_compatible?'
/Library/Ruby/Gems/2.0.0/gems/cocoapods-0.28.0/lib/cocoapods/sources_manager.rb:268:in `master_repo_functional?'
/Library/Ruby/Gems/2.0.0/gems/cocoapods-0.28.0/lib/cocoapods/command.rb:40:in `parse'
/Library/Ruby/Gems/2.0.0/gems/claide-0.4.0/lib/claide/command.rb:186:in `parse'
/Library/Ruby/Gems/2.0.0/gems/cocoapods-0.28.0/lib/cocoapods/command.rb:39:in `parse'
/Library/Ruby/Gems/2.0.0/gems/claide-0.4.0/lib/claide/command.rb:211:in `run'
/Library/Ruby/Gems/2.0.0/gems/cocoapods-0.28.0/lib/cocoapods/command.rb:52:in `run'
/Library/Ruby/Gems/2.0.0/gems/cocoapods-0.28.0/bin/pod:24:in `<top (required)>'
/usr/bin/pod:23:in `load'
/usr/bin/pod:23:in `<main>'
```
解决方法是:
sudo rm -fr ~/.cocoapods/repos/master
pod setup --verbose