CocoaPods 问题：cocoapods was not able to update the 'master' repo

问题：cocoapods was not able to update the 'master' repo.if it is a unexpected issue and persists you can inspect it running 'pod repo update --verbose'缓存 尝试解决：3d 尝试一、根据提示，跑一下 pod repo update --verbosebl

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