CocoaPods问题总结

例子

<pre>
The dependency `` is not used in any concrete target
The dependency AFNetworking is not used in any concrete target
</pre>

问题原因

<pre>
前两天我的OS系统升级了，所以应该执行下面命令！
sudo gem install cocoapods --pre
执行完上面命令之后提示！
Successfully installed cocoapods-1.0.0.beta.2
Parsing documentation for cocoapods-1.0.0.beta.2
</pre>
<pre>
更新了新的版本，然而pod install就出错了，悲了个剧！出错如下：
Updating local specs repositories
Analyzing dependencies
[!] The dependency FMDB (~> 2.3) is not used in any concrete target.
The dependency SDWebImage (~> 3.6) is not used in any concrete target.
The dependency AFNetworking (~> 2.3.0) is not used in any concrete target.
The dependency DACircularProgress (~> 2.2.0) is not used in any concrete target.
The dependency MBProgressHUD (~> 0.8) is not used in any concrete target.
The dependency PSTCollectionView (~> 1.2.1) is not used in any concrete target.
The dependency HPGrowingTextView (~> 1.1) is not used in any concrete target.
The dependency ProtocolBuffers (= 1.9.3) is not used in any concrete target.
The dependency leveldb-library (~> 1.18.1) is not used in any concrete target.
The dependency SCLAlertView-Objective-C (~> 0.7.5) is not used in any concrete target.
The dependency MWPhotoBrowser (~> 1.4.1) is not used in any concrete target.
The dependency MMMarkdown (~> 0.5) is not used in any concrete target.
The dependency MJExtension (~> 2.5.16) is not used in any concrete target.
The dependency MJRefresh (~> 2.4.12) is not used in any concrete target.
The dependency Masonry (~> 0.6.3) is not used in any concrete target.
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
</pre>

解决方案

<pre>
在创建Podfile的时候，用这种格式使用：
</pre>
<pre>
platform :ios, '8.0'

use_frameworks!个别需要用到它，比如reactiveCocoa

target 'MyApp' do
pod 'AFNetworking', '~> 2.6'
pod 'ORStackView', '~> 3.0'
pod 'SwiftyJSON', '~> 2.3'
end
</pre>
<pre>
另外一种写法：
</pre>
<pre>
platform :ios, '8.0'

use_frameworks!个别需要用到它，比如reactiveCocoa

def pods
pod 'AFNetworking', '~> 2.6'
pod 'ORStackView', '~> 3.0'
pod 'SwiftyJSON', '~> 2.3'
end
target 'MyApp' do
pods
end
</pre>