npm run build 에러

front 에서 npm run build 를 하려는데 다음과 같은 에러가 발생했어요

Cannot find module 'webpack' 부분을 보고 package.json 을 보니 webpack 이 안깔려있는 것을 확인하고 npm i webpack 으로 깐 뒤 커밋, 푸쉬하고 우분투 front 서버에서 git pull 까지 한 후 다시 npm run build 를 해도 저런에러가 뜨네요..

ubuntu@ip-172-31-14-223:~/NodeBird/front$ npm run build

> react-nodebird-front@1.0.0 build /home/ubuntu/NodeBird/front
> cross-env ANALYZE=true NODE_ENV=production next build

(node:20352) UnhandledPromiseRejectionWarning: Error: Cannot find module 'webpack'
Require stack:
- /home/ubuntu/NodeBird/front/node_modules/@next/react-refresh-utils/ReactRefreshWebpackPlugin.js
- /home/ubuntu/NodeBird/front/node_modules/next/dist/build/webpack-config.js
- /home/ubuntu/NodeBird/front/node_modules/next/dist/build/index.js
- /home/ubuntu/NodeBird/front/node_modules/next/dist/cli/next-build.js
- /home/ubuntu/NodeBird/front/node_modules/next/dist/bin/next
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:902:15)
    at Function.Module._load (internal/modules/cjs/loader.js:746:27)
    at Module.require (internal/modules/cjs/loader.js:974:19)
    at require (internal/modules/cjs/helpers.js:101:18)
    at Object.<anonymous> (/home/ubuntu/NodeBird/front/node_modules/@next/react-refresh-utils/ReactRefreshWebpackPlugin.js:3:19)
    at Module._compile (internal/modules/cjs/loader.js:1085:14)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1114:10)
    at Module.load (internal/modules/cjs/loader.js:950:32)
    at Function.Module._load (internal/modules/cjs/loader.js:790:12)
    at Module.require (internal/modules/cjs/loader.js:974:19)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:20352) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:20352) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.