webpack-dev-server 오류 질문있습니다.

jsshin 감사합니다 jsshin 님 방법으로 npm i @types/webpack-dev-server@3.11.1 -D 명령어 해도 아래와 같은 에러가 나오시면 [webpack-cli] Invalid options object. Dev Server has been initialized using an options object that does not match the API schema. - options has an unknown property 'publicPath'. These properties are valid: object { allowedHosts?, bonjour?, client?, compress?, devMiddleware?, headers?, historyApiFallback?, host?, hot?, http2?, https?, ipc?, liveReload?, magicHtml?, onAfterSetupMiddleware?, onBeforeSetupMiddleware?, onListening?, open?, port?, proxy?, server?, setupExitSignals?, static?, watchFiles?, webSocketServer? } 일반 webpack-dev-server도 3.11.1 버전으로 맞추면 될겁니다 npm i webpack-dev-server@3.11.1 -D