How do I fix the “ERROR: Failed to build gem native extension.” error when installing cocoapods?

How do I fix the “ERROR: Failed to build gem native extension.” error when installing cocoapods?

我正在尝试在全新的 Mac OS X 11.1 上安装 cocoapods。我已经 运行 这些命令:

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

但是,当我 运行 最后一个命令时,我得到这个错误:

ERROR:  Error installing cocoapods:
    ERROR: Failed to build gem native extension.

    current directory: /Library/Ruby/Gems/2.6.0/gems/ffi-1.14.2/ext/ffi_c
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/bin/ruby -I /Library/Ruby/Site/2.6.0 -r ./siteconf20201226-10485-158gl5m.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-1.14.2 for inspection.
Results logged to /Library/Ruby/Gems/2.6.0/extensions/universal-darwin-20/2.6.0/ffi-1.14.2/gem_make.out

我该怎么做?

sudo gem update --system
xcode-select --install  
sudo gem install compass -n /usr/local/bin
sudo gem install cocoapods -n /usr/local/bin

它解决了我的问题

None 这里提出的解决方案对我有用,我的解决方案是将 ruby 更新到这个版本:

rvm install ruby-2.6.3
rvm use ruby-2.6.3
rvm --default use 2.6.3

然后 运行:

sudo gem install cocoapods

我有 macOS catelina 10.15 和 xcode 11.4,以下设置解决了我的问题。

  • 打开Xcode
  • 单击左上角的 Xcode 选项卡
  • 打开首选项 >> 位置选项卡
  • Select 命令行工具

出于某种原因,没有选择命令行工具,所以这给我带来了问题。我下载了测试版Xcode,更新到最新版本时选择了none