Unable to find a pod with name, author, summary, or description matching `fmdb`
1,先移除掉本地的master,在终端输入podreporemovemaster2,在终端输入cd~/.cocoapods/repos3,把github上的spec下载下来,替换路径~/.cocoapods/repos目录下的master接着在终端输入命令:gitclone--depth1https://github.com/CocoaPods/Specs.gitmaster,等待下载完毕4,执行