公司項目使用iview-admin ，當使用npm run build命令打包是報錯。
錯誤提示如下：
❯ npm run dev
> [email protected] dev /Users/zhangxinxin/workProject/hcg
> webpack-dev-server --content-base ./ --open --inline --hot --compress --config build/webpack.dev.config.js
Happy[happybabel]: Version: 4.0.1. Threads: 8 (shared pool)
Project is running at http://0.0.0.0:8080/
webpack output is served from /dist/
Content not from webpack is served from /Users/zhangxinxin/workProject/hcg
404s will fallback to /index.html
fs.js:127
throw new ERR_INVALID_CALLBACK();
^
TypeError [ERR_INVALID_CALLBACK]: Callback must be a function
at maybeCallback (fs.js:127:9)
at Object.write (fs.js:531:14)
at /MyWorkProject/hcg/build/webpack.dev.config.js:12:8
at FSReqWrap.oncomplete (fs.js:139:20)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] dev: `webpack-dev-server --content-base ./ --open --inline --hot --compress --config build/webpack.dev.config.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
問題原因：node 版本問題，node v10 以上 fs.write 的callback 是必須的，降低Node版本可解決。
不安裝node也可以，可以將webpack.dev.config.js 和 webpack.prod.config.js 中的代碼修改即可：給fs.write添加必要的callback函數，具體操作是修改以上兩個文件中的以下代碼：
fs.write(fd, buf, 0, buf.length, 0, function(err, written, buffer) {});
修改爲：
fs.write(fd, buf, 0, 'utf-8', function(err, written, buffer) {});
重新使用npm run build命令繼續打包即可。