一句正常的更新pod命令
sudo gem install -n /usr/local/bin cocoapods
正常情况下, 执行上面的命令 就可以直接升级成功, 升级成功万事大吉,
反之就遇到下面的升级失败的情况!
➜ Ruby: sudo gem install -n /usr/local/bin cocoapods
Building native extensions. This could take a while...
ERROR: Error installing cocoapods:
ERROR: Failed to build gem native extension.
current directory: /Library/Ruby/Gems/2.3.0/gems/ffi-1.12.2/ext/ffi_c
/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/bin/ruby -r ./siteconf20200313-24412-3logr3.rb extconf.rb
mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/include/ruby.h
extconf failed, exit code 1
Gem files will remain installed in /Library/Ruby/Gems/2.3.0/gems/ffi-1.12.2 for inspection.
Results logged to /Library/Ruby/Gems/2.3.0/extensions/universal-darwin-18/2.3.0/ffi-1.12.2/gem_make.out
这个升级问题困扰了好多天, 可能是ruby的版本和最新的pod版本兼容性有问题, 所以必须先升级ruby, 才能升级pod成功, 且看下面:
方法是在stackoverflow找到的, 当然在安装过程中还需要解决一些其他的异常问题 (默认大家已经安装了 xcode-select)
1. 安装 rvm
curl -L https://get.rvm.io | bash -s stable
如果可以安装成功并出现下列的提示则可以直接进行第二步
Upgrade of RVM in /Users/mengshun/.rvm/ is complete.
Thanks for installing RVM