新的 create-react-app 构建上的 npm start 返回 ELIFECYCLE 错误

使用 create-react-app 制作了一个新的 React 应用程序，现在运行 npm start 时在终端中出现以下错误：

> react-scripts start

Attempting to bind to HOST environment variable: x86_64-apple-darwin13.4.0
If this was unintentional, check that you haven't mistakenly set it in your shell.


events.js:167
      throw er; // Unhandled 'error' event
  ^

Error: getaddrinfo ENOTFOUND x86_64-apple-darwin13.4.0
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:57:26)
Emitted 'error' event at:
    at GetAddrInfoReqWrap.doListen [as callback] (net.js:1468:12)
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:57:17)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] start: `react-scripts start`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the [email protected] start script.
npm ERR! This is probably not a problem with npm. There is likely      additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/chris/.npm/_logs/2018-12-24T10_07_46_970Z-debug.log 

尝试删除节点模块文件夹和 npm install。

type unset HOST在终端中。它会解决这个问题。