coacodpod 安装 报错：ERROR: While executing gem ... (Gem::FilePermissionError) You don't have write permissions for the /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/gems/2.6.0 directory.ruby 版本需要更新到最新了，ruby更新：执行 ：brew install ruby依然是原来的版本，需要执行：echo 'export PATH="/opt/homebrew/opt/ruby/bin:$PATH"' >> ~/.zshrc立即生效：source ~/.zshrc再次查看版本：ruby -v