安装CocoaPods遇到的问题以及使用CocoaPods

一.遇到问题到解决问题的过程

xuleideAir:~ xulei$ pod setup
Setting up CocoaPods master repo
  $ /usr/bin/git clone https://github.com/CocoaPods/Specs.git master --progress
  Cloning into 'master'...
  remote: Enumerating objects: 138, done.        
  remote: Counting objects: 100% (138/138), done.        
  remote: Compressing objects: 100% (107/107), done.        
  error: RPC failed; curl 56 SSLRead() return error -36 51.00 KiB/s   
  fatal: The remote end hung up unexpectedly
  fatal: early EOF
  fatal: index-pack failed
[!] /usr/bin/git clone https://github.com/CocoaPods/Specs.git master --progress
Cloning into 'master'...
remote: Enumerating objects: 138, done.        
remote: Counting objects: 100% (138/138), done.        
remote: Compressing objects: 100% (107/107), done.        
error: RPC failed; curl 56 SSLRead() return error -36 51.00 KiB/s   
fatal: The remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed

xuleideMacBook-Air:~ xulei$ sudo gem uninstall cocoapods
YAML safe loading is not available. Please upgrade psych to a version that supports safe loading (>= 2.0).
Remove executables:
    pod, sandbox-pod

in addition to the gem? [Yn]  
Removing pod
Removing sandbox-pod
Successfully uninstalled cocoapods-1.6.1
xuleideMacBook-Air:~ xulei$ sudo gem install -n /usr/local/bin cocoapods --pre
YAML safe loading is not available. Please upgrade psych to a version that supports safe loading (>= 2.0).
ERROR:  SSL verification error at depth 1: unable to get local issuer certificate (20)
ERROR:  You must add /O=Digital Signature Trust Co./CN=DST Root CA X3 to your local trusted store
Fetching: cocoapods-core-1.7.0.beta.2.gem (100%)
Successfully installed cocoapods-core-1.7.0.beta.2
Fetching: cocoapods-1.7.0.beta.2.gem (100%)
Successfully installed cocoapods-1.7.0.beta.2
Parsing documentation for cocoapods-core-1.7.0.beta.2
Installing ri documentation for cocoapods-core-1.7.0.beta.2
Parsing documentation for cocoapods-1.7.0.beta.2
Installing ri documentation for cocoapods-1.7.0.beta.2
2 gems installed

xuleideMacBook-Air:~ xulei$ pod setup
Setting up CocoaPods master repo
  $ /usr/bin/git clone https://github.com/CocoaPods/Specs.git --progress --
  master
  Cloning into 'master'...
  remote: Enumerating objects: 210, done.        
  remote: Counting objects: 100% (210/210), done.        
  remote: Compressing objects: 100% (165/165), done.        
  error: RPC failed; curl 56 SSLRead() return error -9806 1.36 MiB/s      
  fatal: The remote end hung up unexpectedly
  fatal: early EOF
  fatal: index-pack failed
[!] /usr/bin/git clone https://github.com/CocoaPods/Specs.git --progress -- master

Cloning into 'master'...
remote: Enumerating objects: 210, done.        
remote: Counting objects: 100% (210/210), done.        
remote: Compressing objects: 100% (165/165), done.        
error: RPC failed; curl 56 SSLRead() return error -9806 1.36 MiB/s      
fatal: The remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed

xuleideMacBook-Air:~ xulei$ sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer
Password:
xuleideMacBook-Air:~ xulei$ pod setup
Setting up CocoaPods master repo
  $ /usr/bin/git clone https://github.com/CocoaPods/Specs.git --progress --
  master
  Cloning into 'master'...
  remote: Enumerating objects: 228, done.        
  remote: Counting objects: 100% (228/228), done.        
  remote: Compressing objects: 100% (176/176), done.        
  Receiving objects:  65% (1894469/2914567), 254.12 MiB | 2.84 MiB/s   
  error: RPC failed; curl 56 SSLRead() return error -9806
  fatal: The remote end hung up unexpectedly
  fatal: early EOF
  fatal: index-pack failed
[!] /usr/bin/git clone https://github.com/CocoaPods/Specs.git --progress -- master

Cloning into 'master'...
remote: Enumerating objects: 228, done.        
remote: Counting objects: 100% (228/228), done.        
remote: Compressing objects: 100% (176/176), done.        
error: RPC failed; curl 56 SSLRead() return error -9806 2.84 MiB/s   
fatal: The remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed

xuleideMacBook-Air:~ xulei$ sudo xcode-select -switch /Applications/Xcode.app
Password:
xuleideMacBook-Air:~ xulei$ pod setup
Setting up CocoaPods master repo
  $ /usr/bin/git clone https://github.com/CocoaPods/Specs.git --progress --
  master
  Cloning into 'master'...
  remote: Enumerating objects: 228, done.        
  remote: Counting objects: 100% (228/228), done.        
  remote: Compressing objects: 100% (179/179), done.        
  remote: Total 2914567 (delta 71), reused 121 (delta 34), pack-reused 2914339        
  Receiving objects: 100% (2914567/2914567), 623.93 MiB | 2.56 MiB/s, done.
  Resolving deltas: 100% (1746077/1746077), done.
  Checking out files: 100% (314129/314129), done.
Setup completed

二.安装过程

升级Ruby环境

sudo gem update --system

更换Ruby镜像,先移除后添加

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

gem sources --add https://gems.ruby-china.com/

查看当前镜像

gem sources -l

安装CocoaPods

sudo gem install cocoapods

OS X更新到10.11后，CocoaPods的安装和以前有了点不同
以前安装cocoapods的时候用的是这句：

sudo gem install cocoapods

现在要改成这句：

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

查看cocoapods版本

pod --version

删除cocoaPod

sudo gem uninstal cocoapods

pod setup

这里可能需要等很久，并且报错，比如刚开始我的安装过程就是一波三折

错误示例

正确示例

解决办法：

1.输入以下命令：

sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer

pod setup

如果还有错

2.输入以下命令：

sudo xcode-select -switch /Applications/Xcode.app

pod setup

我一直到了这一步才解决问题

三.使用Pod install

创建示例

新建一个空的文件，创建在工程的最外面，命名一定要是Podfile
输入以下内容

target '工程名称' do

pod '第三方库名称'

end

关闭工程，打开终端，找到该工程文件，进入pod install

//假设工程文件在桌面
cd Desktop
cd 工程名
//可以用ls检测工程里面是某有Podfile文件
//没有就说明你的Podfile没有创建在工程的最外面
//不会成功 强烈建议创建在工程的最外面
//否则就要在Podfile文件里面添加工程路径
pod install

补充：

 新的使用:
 在终端进入当前这个工程目录 cd
 pod init 创建Podfile文件
 双击 打开Podfile文件  在文件里面添加需要导入的第三方库
 例如：
 pod 'ProgressHUD'
 pod 'MJExtension'
 在终端进入Podfile所在的目录 使用pod install 安装第三方库

创建Podfile

修改Podfile文件内容

输入想要的内容