webpack-cli 4.x 's error in the lesson

[mox692]

Hi 👋, I succeeded this lesson.

But when I run $ npm start, this error occurred.

$ npm start

> [email protected] start /Users/kimuramotoyuki/react/react-typescript-samples/handson/00
> webpack-dev-server  --mode development --inline --hot --open

internal/modules/cjs/loader.js:1033
  throw err;
  ^

Error: Cannot find module 'webpack-cli/bin/config-yargs'
Require stack:
- /Users/kimuramotoyuki/react/react-typescript-samples/handson/00/node_modules/webpack-dev-server/bin/webpack-dev-server.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:1030:15)
    at Function.Module._load (internal/modules/cjs/loader.js:899:27)
    at Module.require (internal/modules/cjs/loader.js:1090:19)
    at require (internal/modules/cjs/helpers.js:75:18)
    at Object.<anonymous> (/Users/kimuramotoyuki/react/react-typescript-samples/handson/00/node_modules/webpack-dev-server/bin/webpack-dev-server.js:65:1)
    at Module._compile (internal/modules/cjs/loader.js:1201:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1221:10)
    at Module.load (internal/modules/cjs/loader.js:1050:32)
    at Function.Module._load (internal/modules/cjs/loader.js:938:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/Users/kimuramotoyuki/react/react-typescript-samples/handson/00/node_modules/webpack-dev-server/bin/webpack-dev-server.js'
  ]
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] start: `webpack-dev-server  --mode development --inline --hot --open`
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/kimuramotoyuki/.npm/_logs/2020-11-26T07_28_39_960Z-debug.log

This issue smells similar err, caused by webpack-cli 4.x

So I think it is good way to fix the webpack-cli's version under 4.x in this lesson.

$ npm install [email protected] --save-dev