大量的答案是删除~/Library/Caches/CocoaPods/search_index.json 没有起作用
有用答案:
代码如下
pod repo remove master
cd ~/.cocoapods/repos
git clone --depth 1 https://github.com/CocoaPods/Specs.git master
rm ~/Library/Caches/CocoaPods/search_index.json
pod search afnetworking