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next build fails with ERR_MODULE_NOT_FOUND - Works in 11.x but not in 12.x

See original GitHub issue

What version of Next.js are you using?

12.0.4

What version of Node.js are you using?

17.0.1

What browser are you using?

Chrome

What operating system are you using?

Windows

How are you deploying your application?

next build

Describe the Bug

next build erros with a Module not found

info  - Creating an optimized production build  
info  - Compiled successfully

> Build error occurred
Error [ERR_MODULE_NOT_FOUND]: Cannot find module 'C:\PROG\Issues\issues-nextjs-deepkit\node_modules\@deepkit\type\dist\esm\src\types' imported from C:\PROG\Issues\issues-nextjs-deepkit\node_modules\@deepkit
\type\dist\esm\index.js
    at new NodeError (node:internal/errors:371:5)
    at finalizeResolution (node:internal/modules/esm/resolve:394:11)
    at moduleResolve (node:internal/modules/esm/resolve:915:10)
    at defaultResolve (node:internal/modules/esm/resolve:1005:11)
    at ESMLoader.resolve (node:internal/modules/esm/loader:475:30)
    at ESMLoader.getModuleJob (node:internal/modules/esm/loader:245:18)
    at ModuleWrap.<anonymous> (node:internal/modules/esm/module_job:79:40)
    at link (node:internal/modules/esm/module_job:78:36) {
  type: 'Error',
  code: 'ERR_MODULE_NOT_FOUND'
}

Expected Behavior

A proper successful build.

To Reproduce

I created a repo with 2 branches and steps.

next 11.x branch : Building correctly next 12.x branch : Building fails

https://github.com/lionelhorn/issues-nextjs-deepkit

Issue Analytics

State:
Created 2 years ago
Comments:5 (4 by maintainers)

Top GitHub Comments

1reaction

balazsorban44commented, Nov 30, 2021

Adding this to next.config.js

experimental: {
  esmExternals: false,
},

Fixes this temporarily.

I’ll try to look more into this.

Here is a related thread: https://github.com/vercel/next.js/discussions/27876

0reactions

balazsorban44commented, Jan 27, 2022

This issue has been automatically locked due to no recent activity. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.

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