module.js:549
throw err;
^
Error: Cannot find module 'async'
at Function.Module._resolveFilename (module.js:547:15)
at Function.Module._load (module.js:474:25)
at Module.require (module.js:596:17)
at require (internal/module.js:11:18)
at Object.<anonymous> (F:\ZWDOC\base20190107\node_modules\_extract-text-webpack-plugin@4.0.0-beta.0@extract-text-webpack-plugin\dist\index.js:21:14)
at Module._compile (module.js:652:30)
at Object.Module._extensions..js (module.js:663:10)
at Module.load (module.js:565:32)
at tryModuleLoad (module.js:505:12)
at Function.Module._load (module.js:497:3)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! base@1.0.0 dev: `cross-env WEBPACK_ENV=dev webpack-dev-server --inline --port 8088`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the base@1.0.0 dev 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! C:\Users\gu\AppData\Roaming\npm-cache\_logs\2019-01-07T02_36_01_044Z-debug.log