随笔小记

cocoapod
在cocoa pod 添加 reactivecocoa 的时候会出现如下错误：
1. Pods written in Swift can only be integrated as frameworks; add use_frameworks! to your Podfile or target to opt into using it. The Swift Pods being used are: ReactiveCocoa and Result
这个错误其实就是让你在添加rac的后边加上 use_frameworks! 这句话（不用带‘’）这个是因为苹果官方不让集成Swift的库有关。
2. 在写pod file的时候得写明target ‘**’ do 并且在结尾写上 end
3. The dependency “ is not used in any concrete target 有的时候自阿哥错误是跟pod 版本有关 查看pod版本：pod –version pod 升级（此时是升级到1.0.0.beta.2版本）：sudo gem install cocoapods –pre
4. ERROR: While executing gem … (Errno::EPERM) Operation not permitted - /usr/bin/pod
sudo gem install -n /usr/local/bin cocoapods –pre