vue.js 실행에 대해 질문 드립니다.

"start": "npm run dev",

로 실행 시,

/usr/local/bin/node /usr/local/lib/node_modules/npm/bin/npm-cli.js run start --scripts-prepend-node-path=auto

> vue_frontend@1.0.0 start /Users/seunghwanlee/Desktop/Project/springboot-vue.js-example/vue_frontend

> npm run dev

> vue_frontend@1.0.0 dev /Users/seunghwanlee/Desktop/Project/springboot-vue.js-example/vue_frontend

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

internal/modules/cjs/loader.js:985

  throw err;

  ^

Error: Cannot find module '/Users/seunghwanlee/Desktop/Project/springboot-vue.js-example/vue_frontend/build/webpack.dev.conf.js'

Require stack:

- /Users/seunghwanlee/Desktop/Project/springboot-vue.js-example/vue_frontend/node_modules/webpack/bin/convert-argv.js

- /Users/seunghwanlee/Desktop/Project/springboot-vue.js-example/vue_frontend/node_modules/webpack-dev-server/bin/webpack-dev-server.js

    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:982:15)

    at Function.Module._load (internal/modules/cjs/loader.js:864:27)

    at Module.require (internal/modules/cjs/loader.js:1044:19)

    at require (internal/modules/cjs/helpers.js:77:18)

    at requireConfig (/Users/seunghwanlee/Desktop/Project/springboot-vue.js-example/vue_frontend/node_modules/webpack/bin/convert-argv.js:97:18)

    at /Users/seunghwanlee/Desktop/Project/springboot-vue.js-example/vue_frontend/node_modules/webpack/bin/convert-argv.js:104:17

    at Array.forEach (<anonymous>)

    at module.exports (/Users/seunghwanlee/Desktop/Project/springboot-vue.js-example/vue_frontend/node_modules/webpack/bin/convert-argv.js:102:15)

    at Object.<anonymous> (/Users/seunghwanlee/Desktop/Project/springboot-vue.js-example/vue_frontend/node_modules/webpack-dev-server/bin/webpack-dev-server.js:223:50)

    at Module._compile (internal/modules/cjs/loader.js:1158:30) {

  code: 'MODULE_NOT_FOUND',

  requireStack: [

    '/Users/seunghwanlee/Desktop/Project/springboot-vue.js-example/vue_frontend/node_modules/webpack/bin/convert-argv.js',

    '/Users/seunghwanlee/Desktop/Project/springboot-vue.js-example/vue_frontend/node_modules/webpack-dev-server/bin/webpack-dev-server.js'

  ]

}

npm ERR! code ELIFECYCLE

npm ERR! errno 1

npm ERR! vue_frontend@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 vue_frontend@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!     /Users/seunghwanlee/.npm/_logs/2020-04-19T00_05_06_364Z-debug.log

npm ERR! code ELIFECYCLE

npm ERR! errno 1

npm ERR! vue_frontend@1.0.0 start: `npm run dev`

npm ERR! Exit status 1

npm ERR! 

npm ERR! Failed at the vue_frontend@1.0.0 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/seunghwanlee/.npm/_logs/2020-04-19T00_05_06_384Z-debug.log

Process finished with exit code 1

OS는 맥 환경에서

위와같이 모듈이 없다는 에러가 뜨는데 위와같은 문제를 어떻게 해결할 수 있나요??