middleware.ts is causing this error: "Tracing extension 'startTransaction' is missing."

[Jezfx]

Is there an existing issue for this?

• I have checked for existing issues https://github.com/getsentry/sentry-javascript/issues
• I have reviewed the documentation https://docs.sentry.io/
• 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/nextjs

SDK Version

7.77.0

Framework Version

18.2.0

Link to Sentry event

No response

SDK Setup

We use the default Sentry.init set up for the client, server and edge.

// sentry.client.config.ts, sentry.edge.config.ts, sentry.server.config.ts
import * as Sentry from '@sentry/nextjs'

Sentry.init({
  dsn: '__DSN__',
  tracesSampleRate: 1
})

Steps to Reproduce

This is a working CodeSandbox matching our techstack and set up.
https://codesandbox.io/p/github/Jezfx/sentry-next-middleware-issue/main

To recreate

Create this middleware file

// apps/demo/middleware.ts

import { NextResponse } from 'next/server'
import type { NextRequest } from 'next/server'

export function middleware(request: NextRequest) {
  const url = request.nextUrl.clone()
  const res = NextResponse.rewrite(url)

  return res
}

This codesandbox has the above changes.

Error

This is what we're seeing in the terminal

Expected Result

For us to use middleware as before upgrading@sentry/nextjs to 7.77.0.

Actual Result

This happened after we upgraded @sentry/nextjs to 7.77.0.
Since upgrading we get this error in the in terminal and also no production site data in our sentry.io dashboard anymore 🙁

Error:

Tracing extension 'startTransaction' is missing. You should 'init' the SDK before calling 'startTransaction'

This is causing issues in our live production site, any help is hugely appreciated 🙏

[AbhiPrasad]

@Jezfx, thanks for writing in! What version of the nextjs sdk were you using before you upgraded to 7.70.0?

[Jezfx]

Hi @AbhiPrasad, thanks for getting back to me 🙏 we were using 7.57.0. I've just rolled back to 7.57.0 locally which has stopped that error. We'd ideally like to keep it to 7.70.0 after getting notified about the security patch.

[lforst]

@Jezfx do you have any other @sentry dependencies installed? Please check your lockfile that all sentry dependencies are on version 7.77.0.

[Jezfx]

hey @lforst ah, it looks like we needed to update @sentry/integrations to 7.77.0 too. That's got rid of the errors for us 🙏

For some reason still not getting any events through, issues and performance metrics are still empty. It's likely to be a separate issue so will close this ticket. thank you