[nuxt] Error in pnpm nuxt dev mode: Cannot use import statement outside a module

[TrezorTop]

Is there an existing issue for this?

• [x] I have checked for existing issues https://github.com/getsentry/sentry-javascript/issues
• [x] I have reviewed the documentation https://docs.sentry.io/
• [x] I am using the latest SDK release https://github.com/getsentry/sentry-javascript/releases

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using?

@sentry/nuxt

SDK Version

8.33.1

Framework Version

Nuxt 3.13.0

Link to Sentry event

No response

Reproduction Example/SDK Setup

Here is my configurations:

sentry.client.config.ts

import * as Sentry from "@sentry/nuxt";

Sentry.init({
  // If set up, you can use your runtime config here
  // dsn: useRuntimeConfig().public.sentry.dsn,
  dsn: "https://417a6acdaa42cf95c2271c2fa14541d9@o4504802128101376.ingest.us.sentry.io/4508092319727616",

  // We recommend adjusting this value in production, or using tracesSampler
  // for finer control
  tracesSampleRate: 1.0,
});

sentry.server.config.ts

import * as Sentry from "@sentry/nuxt";

Sentry.init({
  dsn: "https://417a6acdaa42cf95c2271c2fa14541d9@o4504802128101376.ingest.us.sentry.io/4508092319727616",
});

Steps to Reproduce

1. Initialize a fresh Nuxt.js project.
2. Install the @sentry/nuxt package and add Sentry initialization (https://docs.sentry.io/platforms/javascript/guides/nuxt/).
3. Attempt to start the project locally.

Expected Result

Nuxt app on the localhost have been successfully launched.

Actual Result

Getting 500 response from the Nuxt server instance:

[nuxt] [request error] [unhandled] [500] Cannot use import statement outside a module
  at wrapSafe (node:internal/modules/cjs/loader:1469:18)
  at Module._compile (node:internal/modules/cjs/loader:1491:20)
  at Object..js (node:internal/modules/cjs/loader:1691:10)
  at Module.load (node:internal/modules/cjs/loader:1317:32)
  at Function._load (node:internal/modules/cjs/loader:1127:12)
  at TracingChannel.traceSync (node:diagnostics_channel:315:14)
  at wrapModuleLoad (node:internal/modules/cjs/loader:217:24)
  at Module.require (node:internal/modules/cjs/loader:1339:12)
  at require (node:internal/modules/helpers:125:16)
  at C:\dev\js\nuxt-sentry-test\node_modules\.pnpm\@[email protected]_@[email protected]\node_modules\@opentelemetry\resources\build\esm\detectors\platform\node\machine-id\getMachineId.js:30:25

[s1gr1d]

Hello, can you give us a small code reproduction so we can debug this efficiently? :)

[TrezorTop]

Indeed, but my code is unremarkable. It is a brand-new, standard Nuxt project.

Here is my nuxt.config.ts:

// https://nuxt.com/docs/api/configuration/nuxt-config
export default defineNuxtConfig({
  compatibilityDate: '2024-04-03',

  devtools: { enabled: true },

  modules: ["@sentry/nuxt/module"],
})

package.json:

{
  "name": "nuxt-app",
  "private": true,
  "type": "module",
  "scripts": {
    "build": "nuxt build",
    "dev": "nuxt dev",
    "generate": "nuxt generate",
    "preview": "nuxt preview",
    "postinstall": "nuxt prepare"
  },
  "dependencies": {
    "@sentry/nuxt": "^8.33.1",
    "nuxt": "^3.13.0",
    "vue": "latest",
    "vue-router": "latest"
  },
  "packageManager": "[email protected]+sha1.9217c800d4ab947a7aee520242a7b70d64fc7638"
}

sentry.client.config.ts:

import * as Sentry from "@sentry/nuxt";

Sentry.init({
  // If set up, you can use your runtime config here
  // dsn: useRuntimeConfig().public.sentry.dsn,
  dsn: "https://417a6acdaa42cf95c2271c2fa14541d9@o4504802128101376.ingest.us.sentry.io/4508092319727616",

  // We recommend adjusting this value in production, or using tracesSampler
  // for finer control
  tracesSampleRate: 1.0,
});

sentry.server.config.ts:

import * as Sentry from "@sentry/nuxt";

Sentry.init({
  dsn: "https://417a6acdaa42cf95c2271c2fa14541d9@o4504802128101376.ingest.us.sentry.io/4508092319727616",
});

That's all. The rest is just the default Nuxt app scaffolding.

[s1gr1d]

I'll take a look at this

[trezorsix]

I have found that the Nuxt application builds and runs fine, but the issue only occurs when running on localhost. To resolve this, we need to enable the nuxt module only for the build process. A temporary solution would be to edit the nuxt.config.js file:

export default defineNuxtConfig({
  compatibilityDate: "2024-04-03",

  devtools: { enabled: true },

  css: ["~/assets/styles/main.css"],

  modules: [
    // "@sentry/nuxt/module" causes errors while running on localhost
    ...(process.env.ENABLE_SENTRY === 'true' ? ["@sentry/nuxt/module"] : [])
  ],

  // @ts-expect-error: @sentry/nuxt/module causes errors while running on localhost
  sentry: {
    sourceMapsUploadOptions: {
      org: "switchcase-devs",
      project: "nuxt-js-template",
      authToken: "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",
    },
  },
});

[s1gr1d]

I just checked this and with your project setup, I got the error only in development mode (with nuxt dev). But when building the project (with nuxt build) and running the build locally, it worked fine. Can you confirm?

I also tried it with npm, yarn and pnpm v8.15 (so without the package.json entry) and it worked in development mode as well. I still have to check why this causes issues with the latest pnpm version (v9).

But great that you found a workaround! In your case it makes sense to only run Sentry when you are not in dev mode. Something like this might also work:

modules: [
  ...(process.env.NODE_ENV !== 'development' ? ["@sentry/nuxt/module"] : [])
],

[trezorsix]

Yes, the project runs properly when building with nuxt build, I can confirm that

[gokhantaskan]

Yes, the project runs properly when building with nuxt build, I can confirm that.

I implemented the changes successfully, but I'm encountering an issue with the Netlify build. The Nuxt config has a nitro.preset set as the netlify option. I made modifications to the start script as per the documentation.

"start": "node --env-file=.env --import ./.nuxt/dist/server/sentry.server.config.mjs .nuxt/dist/server/index.mjs"

The build has no issues, but Sentry doesn't catch any issues.

[s1gr1d]

In the alpha version, server-side monitoring is not supported when deploying to Netlify. The beta is coming with version 8.35.0, where the --import flag is no longer necessary. Also, errors from the server-side will be reported when deploying to Netlify.

[trezorsix]

Version 8.35.0 still preserves this behaviour

[s1gr1d]

I just tried it with pnpm and couldn't reproduce the error "Cannot use import statement outside a module". But it seems like pnpm cannot resolve the dependency of import-in-the-middle and you have to explicitly add it to your dependencies. import-in-the-middle is a dependency of @sentry/node and @sentry/node is a dependency of @sentry/nuxt.

[trezorsix]

npm gives the same error with import-in-the-middle.

Attaching the Vercel logs

[trezorsix]

Adding the import-in-the-middle explicitly to dependencies did not help.

[trezorsix]

I am going to use dynamicImportForServerEntry with the value of false as it helps, but I hope this is a temporary solution.

[s1gr1d]

The error message looks similar but it's actually a slightly different one 😅 Without declaring import-in-the-middle in the pnpm dependencies, the error says "Cannot find package 'import-in-the-middle' ", as the package is not even available.

However, the error message in your screenshot says "Cannot find module ..." (it needs the hook.mjs module). Did you already add @vercel/nft as an override? You can find more information about how to set this and why this is needed in the docs here.

I understand that this can feel frustrating, and we already filed an issue upstream to Nitro to fix the missing hook.mjs file so the override is not needed anymore.

[timhn-bm]

Hi 👋

Same issue as @trezorsix here, using yarn berry.

• Passing the resolutions didn't work (looking at the node_modules, we still had @vercel/nft v0.26.5 installed 🔴
• Explicitely passing "@vercel/nft": "^0.27.4" in the devDependencies did not work either. I checked my node_modules and version 0.27.4 is indeed installed. That makes me pretty confused 🔴
• I tried adding a plugin to copy/paste the right files but these were overriden by the nitro build process 🔴

I found a very hacky way to get it to work, but wouldn't really recommend it. Basically leveraging Nuxt's lifecycle hooks to copy-pasting the missing files to .output/server/node_modules/import-in-the-middle

1. Added the following nitro:build:public-assets in the nuxt.config

hooks: {

  'nitro:build:public-assets': async function () {
    const { exec } = await import('child_process')
    exec('node copy-files.js', (err, stdout, stderr) => {
      if (err) {
        console.error(`exec error: ${err}`)

        return
      }
      console.log(`stdout: ${stdout}`)
      console.error(`stderr: ${stderr}`)
    })
  },

2. Created this copy-files.js which copies the missing files to .output/server/node_modules/import-in-the-middle

// copy-files.js
import { cp, mkdir } from 'node:fs/promises'

async function main() {
  await mkdir('.output/server/node_modules/import-in-the-middle', {
    recursive: true,
  })
  
  // following calls could probably be parallelized, this is just for explanation
  await cp(
    '../../node_modules/import-in-the-middle/lib',
    '.output/server/node_modules/import-in-the-middle/lib',
    { recursive: true },
  )

  await cp(
    '../../node_modules/import-in-the-middle/hook.js',
    '.output/server/node_modules/import-in-the-middle/hook.js',
  )

  await cp(
    '../../node_modules/import-in-the-middle/hook.mjs',
    '.output/server/node_modules/import-in-the-middle/hook.mjs',
  )
}

main()

[AbhiPrasad]

Hey @timhn-bm! Thank you for sharing your approach + workaround.

Most of the SDK team is off on holiday tomorrow (long weekend), but we'll be back on Monday to take a look at this further. Appreciate the patience in the mean time.

[trezorsix]

@s1gr1d adding "@vercel/nft": "^0.27.4" to the package.json file helped. Thank you.

For those who it may be helpful: add this to your package.json at root level

"pnpm": {
  "overrides": {
    "@vercel/nft": "^0.27.4"
  }
},

[s1gr1d]

Docs for this are coming soon so I will close this issue. The docs PR: https://github.com/getsentry/sentry-docs/pull/11720

Ideally, Sentry users who are using pnpm don't have to explicitly add this in the future so please check the docs for updates.