CocoaPods官网Homebrew官网一、全新安装前，先检查是否有安装残留（删除CocoaPods）1、如果之前装过cocopods，最好先卸载掉，卸载命令：sudogemuninstallcocoapods2、先查看本地安装过的cocopods相关东西，命令如下：gemlist--local|grepcocoapods会显示如下：cocoapods-core(0.39.0)cocoapods-downloader(0.9.3)cocoapods-plugins(0.4.2)cocoapods-search(0.1.0)cocoapods-stats(0.6.2)cocoapods-tru