創建create-react-app myapp項目報錯

創建create-react-app myapp項目報錯 error An unexpected error occurred: 「https://registry.yarnpkg.com/batch/-/batch-0.6.1.tgz: connect ETIMEDOUT 104.16.21.35:443」. 查看yarn是否安裝好 yarn -v 如果安裝好執行 npm use taobao

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