CocosPosd安装，错误

sudo gem install cocoa pods输入该命令之后 会提示错误

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

    Operation not permitted - /usr/bin/xcodeproj

输入一下命令可解决

 sudo gem install -n /usr/local/bin cocoa pods

2------------22-------------2------------------------------------------------------------------------------------------------------------------

ex:

<code class="hljs coffeescript has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;">The dependency `<span class="javascript" style="box-sizing: border-box;"></span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target
The dependency `<span class="javascript" style="box-sizing: border-box;">AFNetworking </span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li></ul>

CocoaPods再遇困难，前几天电脑重装了系统，所有的开发工具就都装了最新的，当我用CocoaPods的时候，出了一个提示，大概就是我的版本不是 last version，然后给你提示了一个命令，直接复制即可，就是下面这个：

<code class="hljs bash has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">sudo</span> gem install cocoapods --pre</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

安装cocoapods的预览版本，就会更新下来新的1.0.0.beta.2版本，如下所示：

<code class="hljs avrasm has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;">Successfully installed cocoapods-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1.0</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.0</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.beta</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.2</span>
Parsing documentation for cocoapods-<span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1.0</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.0</span><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">.beta</span><span class="hljs-number
4000
" style="color: rgb(0, 102, 102); box-sizing: border-box;">.2</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li></ul>

很高兴啊，更新了新的版本，然而pod install就出错了，悲了个剧！出错如下：

<code class="hljs coffeescript has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;">Updating local specs repositories
Analyzing dependencies
[!] The dependency `<span class="javascript" style="box-sizing: border-box;">FMDB (~> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2.3</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.
The dependency `<span class="javascript" style="box-sizing: border-box;">SDWebImage (~> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">3.6</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.
The dependency `<span class="javascript" style="box-sizing: border-box;">AFNetworking (~> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2.3</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.0</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.
The dependency `<span class="javascript" style="box-sizing: border-box;">DACircularProgress (~> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2.2</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.0</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.
The dependency `<span class="javascript" style="box-sizing: border-box;">MBProgressHUD (~> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0.8</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.
The dependency `<span class="javascript" style="box-sizing: border-box;">PSTCollectionView (~> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1.2</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.1</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.
The dependency `<span class="javascript" style="box-sizing: border-box;">HPGrowingTextView (~> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1.1</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.
The dependency `<span class="javascript" style="box-sizing: border-box;">ProtocolBuffers (= <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1.9</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.3</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.
The dependency `<span class="javascript" style="box-sizing: border-box;">leveldb-library (~> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1.18</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.1</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.
The dependency `<span class="javascript" style="box-sizing: border-box;">SCLAlertView-Objective-C (~> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0.7</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.5</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.
The dependency `<span class="javascript" style="box-sizing: border-box;">MWPhotoBrowser (~> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">1.4</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.1</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.
The dependency `<span class="javascript" style="box-sizing: border-box;">MMMarkdown (~> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0.5</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.
The dependency `<span class="javascript" style="box-sizing: border-box;">MJExtension (~> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2.5</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.16</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.
The dependency `<span class="javascript" style="box-sizing: border-box;">MJRefresh (~> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">2.4</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.12</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.
The dependency `<span class="javascript" style="box-sizing: border-box;">Masonry (~> <span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">0.6</span><span class="hljs-number" style="color: rgb(0, 102, 102); box-sizing: border-box;">.3</span>)</span>` <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">is</span> <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">not</span> used <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">in</span> any concrete target.</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li></ul>

我用的三方库比较多，挺长的，出这个错是告诉我们我们所用的库没有指定target，它不知道用在哪里，所以就给报错了，然后我去了cocoapods的官网看了下，cocoapods官网地址

官网是这样给推荐的： 

在创建Podfile的时候，用这种格式使用，

<code class="hljs livecodeserver has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-built_
cb73
in" style="color: rgb(102, 0, 102); box-sizing: border-box;">platform</span> :ios, <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'8.0'</span>
<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">#use_frameworks!个别需要用到它，比如reactiveCocoa</span>

target <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'MyApp'</span> <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">do</span>
pod <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'AFNetworking'</span>, <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'~> 2.6'</span>
pod <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'ORStackView'</span>, <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'~> 3.0'</span>
pod <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'SwiftyJSON'</span>, <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'~> 2.3'</span>
<span class="hljs-function" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">end</span></span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li></ul>

里面的 MyApp 记得替换为自己攻城里面的target。这样就基本OK了，执行pod install / pod update 就都可以了。（use_frameworks! 这个是个别需要的，这里修改一下，可以把我上面的代码中的这一行【删除】）

下面是另外一种写法，

<code class="hljs livecodeserver has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">platform</span> :ios, <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'8.0'</span>
<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">#use_frameworks!个别需要用到它，比如reactiveCocoa</span>

def pods
pod <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'AFNetworking'</span>, <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'~> 2.6'</span>
pod <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'ORStackView'</span>, <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'~> 3.0'</span>
pod <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'SwiftyJSON'</span>, <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'~> 2.3'</span>
<span class="hljs-function" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">end</span></span>
target <span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">'MyApp'</span> <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">do</span>
pods
<span class="hljs-function" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">end</span></span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li></ul><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li></li></ul>

执行pod setup的时候提示如下错误：

[!] CocoaPods was not able to update the `master` repo. If this is an unexpected issue and persists you can inspect it running `pod repo update --verbose`

解决方法：清除CocoaPods缓存后重新执行pod setup, 命令如下：

sudo rm -fr ~/.cocoapods/repos/master

pod setup