CocoaPods 安装 使用

1.开启 terminal

2.移除现有 Ruby 默认源

$ gem sources --remove https://rubygems.org/

3.使用新的源

$ gem sources -a https://ruby.taobao.org/

4.验证新源是否替换成功

$ gem sources -l

5.安装 CocoaPods

$ sudo gem install cocoapods

$ pod setup

备注：苹果系统升级 OS X EL Capitan 后安装改为:

$ sudo gem install -n /usr/local/bin cocoapods

$ pod setup

6.更新 gem

$ sudo gem update --system

7.新建工程，并在终端用 cd 指令到文件夹内

$ pod search 第三方

8.新建 Podfile 文件

$ touch Podfile

9.编辑 Podfile 文件，并写入要添加的第三方库

platform:ios, '8.0'

pod 'AFNetworking', '~> 2.3.1'<-------第三方

10.导入第三方库

$ pod install

11.退出终端

可能遇到的错误提示及解决方法：

Error 1：

Error fetching http://ruby.taobao.org/:
bad response Not Found 404 (http://ruby.taobao.org/specs.4.8.gz)

解决方案：把安装流程中 $ gem sources -a http://ruby.taobao.org/ 
改为：$ gem sources -a https://ruby.taobao.org/

Error 2：

ERROR:  While executing gem ... (Errno::EPERM)

Operation not permitted - /usr/bin/pod

解决方案：苹果系统升级 OS X EL Capitan 后会出现的插件错误，将安装流程 5.安装 CocoaPods 的
sudo gem install cocoapods

改为 sudo gem install -n /usr/local/bin cocoapods

Error 3：

[!] Unable to satisfy the following requirements:

- `AFNetworking (~> 2.3.1)` required by `Podfile`

Specs satisfying the `AFNetworking (~> 2.3.1)` dependency were found, but they required a higher minimum deployment target.

解决方案：Podfile 文件 中   platform:ios, ‘8.0’  后边的 8.0 是平台版本号 ，一定要加上

Error4:

―――――――――― MARKDOWN TEMPLATE ――――――――――

### Report

* What did you do?

* What did you expect to happen?

* What happened instead?

### Stack

```

CocoaPods : 0.29.0

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 (5B130a)

Ruby lib dir : /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib

Repositories : master - https://github.com/CocoaPods/Specs.git @ bd6736d07b16c98ab7a1dae04697cae002f25a9b

```

### Podfile

```ruby

platform :ios,'8.0'

pod 'MBProgressHUD', '~> 0.8'

```

### Error

```

Psych::SyntaxError - (/Users/MAXJ/.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-0.29.0/lib/cocoapods/sources_manager.rb:261:in `version_information'

/Library/Ruby/Gems/2.0.0/gems/cocoapods-0.29.0/lib/cocoapods/sources_manager.rb:222:in `repo_compatible?'

/Library/Ruby/Gems/2.0.0/gems/cocoapods-0.29.0/lib/cocoapods/sources_manager.rb:281:in `master_repo_functional?'

/Library/Ruby/Gems/2.0.0/gems/cocoapods-0.29.0/lib/cocoapods/command.rb:39:in `parse'

/Library/Ruby/Gems/2.0.0/gems/claide-0.4.0/lib/claide/command.rb:179:in `parse'

/Library/Ruby/Gems/2.0.0/gems/cocoapods-0.29.0/lib/cocoapods/command.rb:38: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-0.29.0/lib/cocoapods/command.rb:51:in `run'

/Library/Ruby/Gems/2.0.0/gems/cocoapods-0.29.0/bin/pod:24:in `'

/usr/bin/pod:23:in `load'

/usr/bin/pod:23:in `'

```

―――――――――― TEMPLATE END ――――――――――

[!] Oh no, an error occurred.

Search for existing github issues similar to yours:
https://github.com/CocoaPods/CocoaPods/search?q=%28%2FUsers%2FMAXJ%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!

解决方案：

$ sudo rm -rf ~/.cocoapods/repos/master

$ pod setup

使用cocoapods时，pod setup出错解决

出错：pod setup的时候报错， argumenterror , syntax error on line 4, col 0: `min:0.29.0`

谷歌百度都没找到什么好的解决方法，最后捣鼓了一番，终于弄好了，记一下免得自己以后遇到又要搜索一番了。

解决方法如下：

1. 命令行运行

# -rf ~/.cocoapods/repos

# pod setup（这个我还是没成功，报错ruby里什么找不到文件，于是我更新ruby，如果你成功了，就不用了）

2. 更新ruby

xcode-》preference-》download里安装Command Line Tools

安装rvm：命令行里运行

$ curl -L get.rvm.io | bash -s stable  

等待，运行

$ source ~/.bashrc  

$ source ~/.bash_profile  

查看安装

$ rvm -v

升级ruby：

$ rvm install ruby 2.1.1

ruby升级好了，查看版本 $ ruby -v

3.我ruby安装又失败了，于是谷歌

Error running 'requirements_osx_port_update_system ruby-2.1.1',

根据一篇文章，我又继续了，命令行里

$ sudo port -v selfupdate

结果有出错了，$ sudo:port:command not faund

于是一番搜索，

$ export PATH=$PATH:/opt/local/bin

$ source .profile

升级macports

$sudo port -v selfupdate

终于可以升级ruby了，

$ rvm install 2.1.1

成功，于是，下一步

$ sudo gem install cocoapods

成功

4. 重新运行

$  pod setup

成功