[🐛 Bug]: ERROR: A duplicated identifier has been detected in the same function file, aborting.

[andrepcg]

next-on-pages environment related information

System:
Platform: linux
Arch: x64
Version: #1 SMP Debian 5.10.191-1 (2023-08-16)
CPU: (3) x64 Common KVM processor
Memory: 5 GB
Shell: /usr/bin/zsh
Package Manager Used: npm (10.2.4)

Relevant Packages:
@cloudflare/next-on-pages: 1.13.4
vercel: N/A
next: 13.5.6

Description

After v1.13.4 I started to get ERROR: A duplicated identifier has been detected in the same function file, aborting. Using v1.13.5 still results in the same error.

next-on-pages@1.13.3 works fine
next-on-pages@1.13.4 doesn't work
next-on-pages@1.13.5 doesn't work

npx vercel build works

Reproduction

No response

Pages Deployment Method

Pages CI (GitHub/GitLab integration)

Pages Deployment ID

27b1a3f7-1fc6-4ba9-8cf2-f291a8509cdf

Additional Information

Dependencies in the project

  "dependencies": {
    "@emotion/react": "^11.11.4",
    "@emotion/styled": "^11.11.0",
    "@meronex/icons": "^4.0.0",
    "@mui/material": "^5.15.14",
    "@sentry/nextjs": "^8.27.0",
    "@sentry/react": "^8.27.0",
    "@themesberg/flowbite": "^1.1.1",
    "@tippyjs/react": "^4.2.6",
    "@weareredlight/denormalize_json_api": "^0.2.2",
    "classnames": "^2.3.1",
    "formik": "^2.2.9",
    "lodash.orderby": "^4.6.0",
    "lodash.throttle": "^4.1.1",
    "next": "^13.5.6",
    "nuka-carousel": "^5.2.0",
    "react": "^18.1.0",
    "react-country-flag": "^3.0.2",
    "react-dom": "^18.1.0",
    "react-onclickoutside": "^6.12.0",
    "react-player": "^2.9.0",
    "react-select-country-list": "^2.2.3",
    "react-social-media-embed": "^2.2.2",
    "react-svg": "^15.0",
    "zustand": "^3.6.5"
  }

Would you like to help?

• Would you like to help fixing this bug?

[james-elicx]

Are you able to share a reproduction for this?

[andrepcg]

@james-elicx Unfortunately no. My gut feeling is that it is related to using both @sentry/nextjs and @sentry/react packages but I haven't tried it yet, will do it later

[andrepcg]

@james-elicx Nope, that didnt do anything. Tried to remove a bunch of other packages without success.

What it's clear is that version 1.13.4 introduced the issue. Clear as water

[micooz]

same issue, @cloudflare/next-on-pages v1.13.5 works for me two days ago, but failed today. Revert my lockfile works fine.

My guess is that some dependency upgrade is not compatible with this PR: #886

[orliesaurus]

Also seeing this issue after installing @sentry/nextjs

[kruszczynski]

Reverting @sentry/nextjs to 8.35.0 fixed that issue for me

[psincraian]

I also have the same problem with sentry and nextjs. with next-on-pages 1.13.2 I don't have this problem

[hitsthings]

I am seeing this on next-on-pages 1.13.6. The duplicated identifier happens to be "26195" and seems to be a small wrapper around node:buffer. E.g. the files in .next almost all have this: {26195:t=>{"use strict";t.exports=require("node:buffer")} ...}

By the time it gets to .vercel/output they tend to all have it defined twice:

E.g. Line 10:

...(self.webpackChunk_N_E=self.webpackChunk_N_E||[]).push([[118],{26195:t=>{"use strict";t.exports=require("node:buffer")}...

Line 142:

...(self.webpackChunk_N_E=self.webpackChunk_N_E||[]).push([[323],{2067:e=>{"use strict";e.exports=require("node:async_hooks")},26195:e=>{"use strict";e.exports=require("node:buffer")},...

Vercel version is "39.1.1". Worth nothing that same version worked fine with next-on-pages 1.13.5 (but I also changed other dependencies, so maybe a fluke).

Can confirm that reverting sentry/nextjs to 8.35.0 from 8.39.0 solves this, and now the reference on line 10 is gone - only the line 142 reference is left.