我正在尝试使用安装cocoapods
sudo install cocoapods
这就是我收到的
usage: install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]
[-o owner] file1 file2
install [-bCcpSsv] [-B suffix] [-f flags] [-g group] [-m mode]
[-o owner] file1 ... fileN directory
install -d [-v] [-g group] [-m mode] [-o owner] directory ...
这是我第二次尝试安装cocoapods。第一次尝试安装失败，并说我可能需要安装ruby dev？我试着安装它，然后开始收到上面的消息。
安装Cocoapods的正确命令是：
sudo gem install cocoapods
如他们的"入门"页面所示。
谢谢！在使用"gem"后，我遇到了以下问题：
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 ./siteconf20200415-22388-129pjat.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
我发现我需要从xcode安装一些额外的项目，使用：
xcode-select --install
在安装和重新启动计算机大约20分钟后，我就可以使用：
sudo gem install cocoapods