在 Catalina 10.15.2 上安装 cocoapods 时出错答案

【问题标题】：Error installing cocoapods on Catalina 10.15.2在 Catalina 10.15.2 上安装 cocoapods 时出错
【发布时间】：2020-05-27 00:38:06
【问题描述】：

刚开始学swift，发现可以从cocoapods获取很多库，所以我开始通过运行sudo gem install cocoapods安装cocoapods，但是在安装过程中出现以下错误：

Successfully installed concurrent-ruby-1.1.6
Successfully installed i18n-0.9.5
Successfully installed thread_safe-0.3.6
Successfully installed tzinfo-1.2.7
Successfully installed activesupport-4.2.11.3
Successfully installed nap-1.1.0
Successfully installed fuzzy_match-2.0.4
Successfully installed httpclient-2.8.3
Successfully installed algoliasearch-1.27.2
Building native extensions. This could take a while...
ERROR:  Error installing cocoapods:
    ERROR: Failed to build gem native extension.

    current directory: /Library/Ruby/Gems/2.6.0/gems/ffi-1.12.2/ext/ffi_c
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/ruby -I /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0 -r ./siteconf20200527-3399-1uix5ob.rb extconf.rb
mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/include/ruby.h

You might have to install separate package for the ruby development
environment, ruby-dev or ruby-devel for example.

extconf failed, exit code 1

Gem files will remain installed in /Library/Ruby/Gems/2.6.0/gems/ffi-1.12.2 for inspection.
Results logged to /Library/Ruby/Gems/2.6.0/extensions/universal-darwin-19/2.6.0/ffi-1.12.2/gem_make.out

我正在运行带有 Xcode 10.3 的 macOS Catalina 10.15.2，不确定是不是因为 masOS 已过时，如果是，有什么方法可以在不更新 macOS 的情况下解决安装问题？

【问题讨论】：

标签： ruby rubygems cocoapods

【解决方案1】：

我从 macOS 恢复 > 磁盘工具 中删除了 Macintosh HD，然后又从 macOS 恢复 重新安装了 macOS Catalina 后，我也发生了同样的事情。

现在，我在 macOS Catalina 10.15.7 上运行 sudo gem install cocoapods 时发生了这个错误。

我还不确定为什么，但是通过 Homebrew 安装 cocoapods 对我有用。

brew 安装 cocoapods

brew install cocoapods

如果您还没有 Homebrew，请在终端上运行以下命令：

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

【讨论】：