npm run build failed + unused function is bundled to .next output folder

[oran1248]

Bug report

Describe the bug

Build fails with non indicative error.
If I remove one of the packages jsonwebtoken or argon2, the build succeded.

I don't know why, but splitting the files - one file importing argon2 and one file importing jsonwebtoken solves the problem. Why?!

But together I get a weird build error...

To Reproduce

• Clone this repo https://github.com/oran1248/reproduction-repo
• run npm install
• run npm run build
• build fails with non-indicative error

Expected behavior

Build succeeded.

Screenshots

System information

• OS: Windows
• Version of Next.js: 9.5.3
• Version of Node.js: 12.16.3

[timneutkens]

Feel free to investigate your issue and send a PR.

[oran1248]

Feel free to investigate your issue and send a PR.

Solved it by seperating argon2 and jsonwebtoken (and of course the functions that used them) to two different files 🤹

[timneutkens]

Interesting, not sure what happens there. Potentially it's just the dependency that you're using 🤔 Can this be closed then if it's resolved?

[oran1248]

Yes you can close this issue as I solved it with a workaround.
But still this is very interesting case, I'm not sure if it's related to the dependencies or not.

[balazsorban44]

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.