nextjs - 💡(How to fix) Fix Azure Maps Incompatible with Turbopack [1 participants]

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vercel/next.js#88501Fetched 2026-04-08 02:04:42
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Root Cause

We are trying to update from Next JS 15.1.2 to 16.1.1. 16.1.1 requires using Turbopack instead of web pack, but that’s not a big deal because I switched it over and everything was running locally just fine. The problem began when I needed to create a production build. I did not see any compilation or typescript errors upon building, but when deploying the build, or running the build locally instead of running a dev environment, I was met with "SyntaxError: Identifier 'n' has already been declared." I used next experimental-analyze to look at the static chunks and discovered the culprit to be atlas-esm.min.js.

Fix Action

Fix / Workaround

However, I have found a workaround. By using Babel, webpack, and adding the azure-maps-control package to the transpiled packages section in the config, I was able to get maps to show up again. However, this is not ideal if webpack is to be deprecated in the future at some point, forcing us to use turbopack or find another frontend engine to move to.

Code Example

Operating System:
  Platform: linux
  Arch: x64
  Version: #1 SMP PREEMPT_DYNAMIC Sun Aug  6 20:05:33 UTC 2023
  Available memory (MB): 4102
  Available CPU cores: 2
Binaries:
  Node: 20.12.0
  npm: 10.5.0
  Yarn: 1.22.19
  pnpm: 8.15.6
Relevant Packages:
  next: 16.1.1 // Latest available version is detected (16.1.1).
  eslint-config-next: 15.5.7
  react: 18.3.1
  react-dom: 18.3.1
  typescript: 5.8.3
Next.js Config:
  output: export
RAW_BUFFERClick to expand / collapse

Link to the code that reproduces this issue

https://codesandbox.io/p/devbox/frosty-hooks-wvrgkm

To Reproduce

  1. Replace key string in code with your azure maps key
  2. run application (next dev)

Current vs. Expected behavior

Expected result: sample map will show up

Actual result: white screen

Provide environment information

Operating System:
  Platform: linux
  Arch: x64
  Version: #1 SMP PREEMPT_DYNAMIC Sun Aug  6 20:05:33 UTC 2023
  Available memory (MB): 4102
  Available CPU cores: 2
Binaries:
  Node: 20.12.0
  npm: 10.5.0
  Yarn: 1.22.19
  pnpm: 8.15.6
Relevant Packages:
  next: 16.1.1 // Latest available version is detected (16.1.1).
  eslint-config-next: 15.5.7
  react: 18.3.1
  react-dom: 18.3.1
  typescript: 5.8.3
Next.js Config:
  output: export

Which area(s) are affected? (Select all that apply)

TypeScript, Turbopack, Runtime, Pages Router, Output

Which stage(s) are affected? (Select all that apply)

next dev (local), next start (local)

Additional context

We are trying to update from Next JS 15.1.2 to 16.1.1. 16.1.1 requires using Turbopack instead of web pack, but that’s not a big deal because I switched it over and everything was running locally just fine. The problem began when I needed to create a production build. I did not see any compilation or typescript errors upon building, but when deploying the build, or running the build locally instead of running a dev environment, I was met with "SyntaxError: Identifier 'n' has already been declared." I used next experimental-analyze to look at the static chunks and discovered the culprit to be atlas-esm.min.js.

However, I have found a workaround. By using Babel, webpack, and adding the azure-maps-control package to the transpiled packages section in the config, I was able to get maps to show up again. However, this is not ideal if webpack is to be deprecated in the future at some point, forcing us to use turbopack or find another frontend engine to move to.

extent analysis

TL;DR

  • The most likely fix involves configuring Turbopack to properly handle the azure-maps-control package, potentially by adding it to a list of packages that require special handling or transpilation.

Guidance

  • Investigate Turbopack configuration options to see if there's a way to specify packages that need transpilation or special handling, similar to how it was done with Babel and Webpack.
  • Review the Next.js documentation and Turbopack documentation for any mentions of handling third-party packages like azure-maps-control.
  • Consider reaching out to the Next.js or Turbopack community for guidance on how to handle this specific package, as it may be a known issue.
  • If possible, try to reproduce the issue with a minimal example to isolate the problem and make it easier to debug.

Example

No specific code example can be provided without more information on the Turbopack configuration options.

Notes

  • The provided workaround using Babel and Webpack suggests that the issue is related to how the azure-maps-control package is being handled, but it's not ideal due to the potential deprecation of Webpack.
  • Without more information on the Turbopack configuration options, it's difficult to provide a more specific solution.

Recommendation

  • Apply workaround: Using Babel, Webpack, and adding the azure-maps-control package to the transpiled packages section in the config, as it has been shown to work, even if it's not the ideal long-term solution. This allows for continued functionality while a more permanent solution using Turbopack is explored.

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nextjs - 💡(How to fix) Fix Azure Maps Incompatible with Turbopack [1 participants]