1、安装yarn
curl -o- -L https://yarnpkg.com/install.sh | bash
出现了提示信息：
> WARNING: GPG is not installed, integrity can not be verified!
> Extracting to ~/.yarn...
> Adding to $PATH...
> Profile not found. Tried (as defined in $PROFILE), ~/.bashrc, ~/.bash_profile, ~/.zshrc, and ~/.profile.
> Create one of them and run this script again
> Create it (touch ) and run this script again
OR
> Append the following lines to the correct file yourself:
export PATH="$HOME/.yarn/bin:$HOME/.config/yarn/global/node_modules/.bin:$PATH"
将最后一行，放到命令行即可。
2、yarn create umi my-app
cd my-app
3、yarn
warning Error running install script for optional dependency: "/Users/songya/antdpro/my-app/node_modules/puppeteer: Command failed.
Exit code: 1
Command: node install.js
Arguments:
Directory: /Users/songya/antdpro/my-app/node_modules/puppeteer
Output:
ERROR: Failed to download Chromium r669486! Set \"PUPPETEER_SKIP_CHROMIUM_DOWNLOAD\" env variable to skip download.
{ Error: read ETIMEDOUT
at TLSWrap.onStreamRead (internal/stream_base_commons.js:111:27)
-- ASYNC --
at BrowserFetcher.<anonymous> (/Users/songya/antdpro/my-app/node_modules/puppeteer/lib/helper.js:111:15)
at Object.<anonymous> (/Users/songya/antdpro/my-app/node_modules/puppeteer/install.js:64:16)
at Module._compile (internal/modules/cjs/loader.js:707:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:718:10)
at Module.load (internal/modules/cjs/loader.js:605:32)
at tryModuleLoad (internal/modules/cjs/loader.js:544:12)
at Function.Module._load (internal/modules/cjs/loader.js:536:3)
报错：ERROR: Failed to download Chromium r669486! Set \"PUPPETEER_SKIP_CHROMIUM_DOWNLOAD\" env variable to skip download.
解决方法：npm install -g cnpm --registry=https://registry.npm.taobao.org
cnpm i puppeteer
4、yarn start
? error Error: Cannot find module ‘react‘
解决方法：yarn add react
warning package-lock.json found. Your project contains lock files generated by tools other than Yarn. It is advised not to mix package managers in order to avoid resolution inconsistencies caused by unsynchronized lock files. To clear this warning, remove package-lock.json.
解决方法：rm package-lock.json
5、yarn start
App running at:
- Local: http://localhost:8000/ (copied to clipboard)
- Network: http://10.28.175.13:8000/
原文地址：https://www.cnblogs.com/songya/p/11072493.html