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Sentry causes Next.js standalone to copy entire repo into build output #18004
Description
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
10.21.0
Framework Version
Next 16.0.0
Link to Sentry event
No response
Reproduction Example/SDK Setup
https://github.com/BTOdell/sentry-nextjs-standalone-bug
Steps to Reproduce
- Set Next.js build output to 'standalone'
- Import Sentry SDK from
instrumentation.ts(don't even need to configure Sentry innext.config.ts)
Expected Result
Next.js standalone build output should only contain the minimal files needed to run the app
Actual Result
Standalone output directory contains copy of the entire repository / project
Additional Context
Confirmed that this bug does not happen with Next 15.4.4 with @sentry/nextjs v9 nor v10.
Likely a compatibility issue with Next 16?
May be related to #18001, but I'm not getting a build error - just incorrect build output.
Tip: React with 👍 to help prioritize this issue. Please use comments to provide useful context, avoiding +1 or me too, to help us triage it.
Reacted by richard-powers and dwolrdcojp
Activity
linear commentedon Oct 22, 2025
JS-1080
chargome commentedon Oct 23, 2025
Hey @BTOdell thanks for filing this. We'll likely need to take this to the Next.js team as we do not control the build ouput. I assume you're building the app with Turbopack atm?
BTOdell commentedon Oct 23, 2025
@chargome Yeah, I understand you'll probably need to work with the Next.js team to figure out why this is happening. The minimal repo that I included was stripped down from an app in production and Sentry was the only dependency that was causing this bug to happen.
chargome commentedon Oct 23, 2025
Thanks for investigating! We have some other bundling related issues with turbopack atm, maybe they're related. Will post any updates here
BTOdell commentedon Nov 5, 2025
Confirmed that this bug is fixed by Next.js 16.0.1 with no change required by Sentry.
Feat/sentry integration (#75)