vue -- 异常处理集合

1、npm run dev 运行出错，报错如下：

> webpack-dev-server --inline --progress --config build/webpack.dev.conf.js

module.js:471
    throw err;
    ^

Error: Cannot find module 'define-properties'
    at Function.Module._resolveFilename (module.js:469:15)
    at Function.Module._load (module.js:417:25)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (C:UsersadoctorsDesktop
ead
ode_modules\_array-includes@3.0.3@array-includesindex.js:3:14)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! read@1.0.0 dev: `webpack-dev-server --inline --progress --config build/webpack.dev.conf.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the read@1.0.0 dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

解决方案：

方案一：卸载npm uninstall webpack-dev-server，在安装这个npm i webpack-dev-server@2.9.7。

方案二：删除node_modules目录，使用npm install（比cnpm问题少点，就是慢）。

一时也想不出别的了，遇到了再说，待续……