yarn add v1.3.2 [1/4] Resolving packages... error An unexpected error occurred: "https://registry.yarnpkg.com/react: getaddrinfo EAI_AGAIN registry.yarnpkg.com registry.yarnpkg.com:443". info If you think this is a bug, please open a bug report with the information provided in "/home/shiv/my-app/yarn-error.log". info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.