1. pod repo remove master
2. cd ~/.cocoapods/repos
3. git clone --depth 1 https://github.com/CocoaPods/Specs.git master
4. rm ~/Library/Caches/CocoaPods/search_index.json
5. pod search wechatopensdk
1. pod repo remove master
2. cd ~/.cocoapods/repos
3. git clone --depth 1 https://github.com/CocoaPods/Specs.git master
4. rm ~/Library/Caches/CocoaPods/search_index.json
5. pod search wechatopensdk