@sentry/nextjs v.7.21.1 broke "npm run dev" - works for v.7.21.0

[larsqa]

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 package are you using?

@sentry/nextjs

SDK Version

7.21.1

Framework Version

Next.js v12.3.0

Link to Sentry event

No response

Steps to Reproduce

• I added Sentry to a project yesterday, where error events were sent to Sentry's dashboard. (v.7.21.0)
• Today, I had to reinstall sentry (now v.7.21.1) and running npm run dev didn't send any errors to Sentry
• I downgraded to v.7.21.0 and errors are again sent when running with npm run dev

Expected Result

v.7.21.1 should send errors when running with npm run dev

Actual Result

v.7.21.1 doesn't send errors when running with npm run dev.

• {debug: true} in sentry.client.config.js doesn't yield debugging info
• {silent: false} in sentryWebpackPluginOptions in next.config.js doesn't yield debugging info
  It seems like sentry doesn't run at all

[lforst]

Thanks for writing in! I was able to reproduce this. We'll make sure this gets resolved.