cocoapods的安装笔记

1.打开终端

2 移除现有 Ruby 默认源 输入以下指令

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

3.使用新的源 输入以下指令

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

4.验证新源是否替换成功 输入以下指令 

$gem sources -l

//  替换成功
*** CURRENT SOURCES ***

https://ruby.taobao.org/

5.安装cocoapPods

$sudo gem install cocoa pods

苹果系统升级   OS X EL Capitan  后改为 ：

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

安装过程：

Fetching: i18n-0.7.0.gem (100%)

Successfully installed i18n-0.7.0
Fetching: thread_safe-0.3.5.gem (100%)
Successfully installed thread_safe-0.3.5
Fetching: tzinfo-1.2.2.gem (100%)
Successfully installed tzinfo-1.2.2
Fetching: minitest-5.9.0.gem (100%)
Successfully installed minitest-5.9.0
Fetching: concurrent-ruby-1.0.2.gem (100%)
Successfully installed concurrent-ruby-1.0.2
Fetching: activesupport-5.0.0.1.gem (100%)
ERROR:  Error installing cocoapods:
	activesupport requires Ruby version >= 2.2.2.

出现错误：

ERROR:  Error installing cocoapods:
	activesupport requires Ruby version >= 2.2.2.

解决方案 ：

1、安装 RVM baby 版本管理器 ：

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

等安装完成 出现下面这行提示以下：

In case of problems: https://rvm.io/help and https://twitter.com/rvm_io

执行：

$source ~/.bashrc

$source ~/.bash_profile  

测试是否安装正常：

$rvm -v  

提示以下：

rvm 1.27.0 (latest) by Wayne E. Seguin <[email protected]>, Michal Papis <[email protected]> [https://rvm.io/]

2、用RVM升级Ruby查看当前ruby版本

 $ruby -v 

ruby 2.0.0p648 (2015-12-16 revision 53162) [universal.x86_64-darwin15]

     现在的ruby版本是2.0.0的，安装cocoa pods需要的最低版本是2.2.2的

输入以下命令显示所有ruby版本

$rvm list known

# MRI Rubies
[ruby-]1.8.6[-p420]
[ruby-]1.8.7[-head] # security released on head
[ruby-]1.9.1[-p431]
[ruby-]1.9.2[-p330]
[ruby-]1.9.3[-p551]
[ruby-]2.0.0[-p648]
[ruby-]2.1[.8]
[ruby-]2.2[.4]
[ruby-]2.3[.0]
[ruby-]2.2-head
ruby-head

# for forks use: rvm install ruby-head-<name> --url https://github.com/github/ruby.git --branch 2.2

# JRuby
jruby-1.6[.8]
jruby-1.7[.23]
jruby[-9.0.5.0]
jruby-head

# Rubinius
rbx-1[.4.3]
rbx-2.3[.0]
rbx-2.4[.1]
rbx[-2.5.8]
rbx-head

# Opal
opal

# Minimalistic ruby implementation - ISO 30170:2012
mruby[-head]

# Ruby Enterprise Edition
ree-1.8.6
ree[-1.8.7][-2012.02]

# GoRuby
goruby

# Topaz
topaz

# MagLev
maglev[-head]
maglev-1.0.0

# Mac OS X Snow Leopard Or Newer
macruby-0.10
macruby-0.11
macruby[-0.12]
macruby-nightly
macruby-head

# IronRuby
ironruby[-1.1.3]
ironruby-head

安装ruby2.2.2执行

$rvm install 2.2.2

安装ruby2.2.2需要一段时间，安装期间记得按回车键，安装成功后继续安装cocoapods.

4.验证新源是否替换成功 输入以下指令