cocoapods 安装（每次都会遇见不同的问题简单记录一下）

错误1

：cocoapods ERROR: Error installing cocoapods:

ERROR: Failed to build gem native extension.

一气之下重新安装pod，成功解决报错，下面为安装不步骤，记录一下

1、安装Homebrew

/bin/zsh -c "$(curl -fsSL https://gitee.com/cunkai/HomebrewCN/raw/master/Homebrew.sh)"

2、通过brew安装ruby

（1）命令：brew install ruby

（2）配置环境变量：

echo 'export PATH="/usr/local/opt/ruby/bin:$PATH"' >> ~/.bash_profile

source ~/.bash_profile

3、安装 CocoaPods

（1）sudo gem install -n /usr/local/bin cocoapods

（2）pod repo update --verbose

4、替换镜像源

（1）移除：sudo gem sources--removehttps://rubygems.org/

（2）添加：sudo gem sources--addhttps://gems.ruby-china.com

（3）查看：gem sources -l

错误记录：

cocoapods报错 undefined method `deprecator‘ for ActiveSupport:Module (NoMethodError)

升级或者重装cocoapods报错

/usr/local/lib/ruby/gems/3.2.0/gems/activesupport-7.1.0/lib/active_support/core_ext/array/conversions.rb:108:in `<class:Array>': undefined method `deprecator' for ActiveSupport:Module (NoMethodError)

deprecate to_default_s: :to_s, deprecator: ActiveSupport.deprecator
^^^^^^^^^^^
Did you mean? deprecate_constant
from /usr/local/lib/ruby/gems/3.2.0/gems/activesupport-7.1.0/lib/active_support/core_ext/array/conversions.rb:8:in `<top (required)>'
from <internal:/usr/local/lib/ruby/site_ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:86:in `require'
from <internal:/usr/local/lib/ruby/site_ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:86:in `require'
from /usr/local/lib/ruby/gems/3.2.0/gems/cocoapods-1.13.0/lib/cocoapods.rb:9:in `<top(required)>'
from <internal:/usr/local/lib/ruby/site_ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:86:in `require'
from <internal:/usr/local/lib/ruby/site_ruby/3.2.0/rubygems/core_ext/kernel_require.rb>:86:in `require'
from /usr/local/lib/ruby/gems/3.2.0/gems/cocoapods-1.13.0/bin/pod:36:in `<top (required)>'
from /usr/local/bin/pod:25:in `load'
from /usr/local/bin/pod:25:in `<main>'

从错误上看Cocoapods 使用activesupport 中方法找不到对应的方法

没有指定确切的版本，并且上一个版本（7.1.0）有一个错误

找到解决方法。限制为 activesupport (7.0.8) 的最新版本

gem 'activesupport', '~> 7.0', '<= 7.0.8'

这样写可能会报错，我们换个思路，直接删除activesupport库，下载旧版本

直接删除会报因cocoapods 使用无法删除，

You have requested to uninstall the gem:
activesupport-7.1.0

所以我们先下载旧版本

sudo gem install activesupport -v 7.0.8

查看版本：gem list

abbrev (default: 0.1.1)
activesupport (7.1.0, 7.0.8)
addressable (2.8.5)

...