前言

CocoaPods 安装有什么麻烦的？直接上官网 https://cocoapods.org/ 照着安装不就行了。
如果你这么想，那就大错特错了。今天我们就盘一下 CocoaPods 安装的那些坑。

开始

替换源

自带的源太慢了，我换了好几个梯子都不行，所以强烈建议大家还是替换成国内的源：

# 移除默认源，添加国内源
gem sources --add https://gems.ruby-china.com/ --remove https://rubygems.org/

# 确认是否移除成功
gem sources -l

# 没问题，看来是成功了！
*** CURRENT SOURCES ***

https://gems.ruby-china.com/

ruby版本太老：

# 执行这句开始安装
sudo gem install cocoapods -V

# 报错 1 ：ruby 版本太老，运行以下任务

ERROR:  Error installing cocoapods:
    The last version of activesupport (>= 5.0, < 8) to support your Ruby & RubyGems was 6.1.7.10. Try installing it with `gem install securerandom -v 0.3.2` and then running the current command again
    activesupport requires Ruby version >= 3.1.0. The current ruby version is 2.6.10.210.


sudo gem install securerandom -v 0.3.2

# 报错 2 ：ruby 版本太老，运行以下任务

ERROR:  Error installing cocoapods:
    The last version of activesupport (>= 5.0, < 8) to support your Ruby & RubyGems was 6.1.7.10. Try installing it with `gem install drb -v 2.0.6` and then running the current command again
    activesupport requires Ruby version >= 3.1.0. The current ruby version is 2.6.10.210.


sudo gem install drb -v 2.0.6

# 报错 3 ：ruby 版本太老，运行以下任务

ERROR:  Error installing cocoapods:
    The last version of activesupport (>= 5.0, < 8) to support your Ruby & RubyGems was 6.1.7.10. Try installing it with `gem install activesupport -v 6.1.7.10` and then running the current command again
    activesupport requires Ruby version >= 3.1.0. The current ruby version is 2.6.10.210.

sudo gem install activesupport -v 6.1.7.10

# 报错 4 ： ruby 太老

ERROR:  Error installing activesupport:
    The last version of zeitwerk (~> 2.3) to support your Ruby & RubyGems was 2.6.18. Try installing it with `gem install zeitwerk -v 2.6.18` and then running the current command again
    zeitwerk requires Ruby version >= 3.2. The current ruby version is 2.6.10.210.

不停往下还是报错，根本原因 ruby 太老，我们安装 rvm 解决。

rvm 使用

rvm 地址： https://rvm.io/

先安装gpg2 ： brew install gpg2

成功后安装证书(注意，不要开梯子！不要开梯子！可以连手机热点)：

gpg --keyserver keyserver.ubuntu.com --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB

gpg: 密钥 105BD0E739499BDB： 1 个重复签名被移除
gpg: /Users/mac/.gnupg/trustdb.gpg：建立了信任度数据库
gpg: 密钥 105BD0E739499BDB：公钥 “Piotr Kuczynski <piotr.kuczynski@gmail.com>” 已导入
gpg: 密钥 3804BB82D39DC0E3：公钥 “Michal Papis (RVM signing) <mpapis@gmail.com>” 已导入
gpg: 处理的总数：2
gpg:               已导入：2

最后，安装 rvm：

curl -sSL https://get.rvm.io | bash -s stable