Sentry cant upload sourcemaps in default next.js project

[GorlikItsMe]

Environment

SaaS (https://sentry.io/)

What are you trying to accomplish?

I want to add sentry to my next.js project

How are you getting stuck?

For some reason sentry cant upload sourcemaps during build time. Because of that, you cant see the source code in the sentry dashboard.

I created example repository: https://github.com/GorlikItsMe/nextjs-sentry-dont-work

When i enabled logs (silent: false in next.config.mjs) i saw this:

[@sentry/nextjs - Node.js] Info: Sending telemetry data on issues and performance to Sentry. To disable telemetry, set `options.telemetry` to `false`.
[@sentry/nextjs - Node.js] Warning: Didn't find any matching sources for debug ID upload. Please check the `sourcemaps.assets` option.
[@sentry/nextjs - Edge] Info: Sending telemetry data on issues and performance to Sentry. To disable telemetry, set `options.telemetry` to `false`.
[@sentry/nextjs - Edge] Warning: Didn't find any matching sources for debug ID upload. Please check the `sourcemaps.assets` option.
[@sentry/nextjs - Client] Info: Sending telemetry data on issues and performance to Sentry. To disable telemetry, set `options.telemetry` to `false`.
[@sentry/nextjs - Client] Warning: Didn't find any matching sources for debug ID upload. Please check the `sourcemaps.assets` option.

Thank you in advance for any advice

Where in the product are you?

Unknown

Link

No response

DSN

No response

Version

No response

[getsantry]

Assigning to @getsentry/support for routing ⏲️

[andreiborza]

Hi, could you please paste your build output logs? Thanks for the reproduction repo, we'll take a look.

[andreiborza]

I have tried out your repo but cannot reproduce this issue. Do you have your SENTRY_AUTH_TOKEN set in .env?

[GorlikItsMe]

Hi, could you please paste your build output logs? Thanks for the reproduction repo, we'll take a look.

Full build logs:

PS D:\temp\nextjs-and-sentry-dont-work> npm run build

> nextjs-and-sentry-dont-work@0.1.0 build
> next build

  ▲ Next.js 14.2.5
  - Environments: .env
  - Experiments (use with caution):
    · instrumentationHook

   Creating an optimized production build ...
[@sentry/nextjs - Node.js] Info: Sending telemetry data on issues and performance to Sentry. To disable telemetry, set `options.telemetry` to `false`.
[@sentry/nextjs - Node.js] Warning: Didn't find any matching sources for debug ID upload. Please check the `sourcemaps.assets` option.
[@sentry/nextjs - Edge] Info: Sending telemetry data on issues and performance to Sentry. To disable telemetry, set `options.telemetry` to `false`.
[@sentry/nextjs - Edge] Warning: Didn't find any matching sources for debug ID upload. Please check the `sourcemaps.assets` option.
[@sentry/nextjs - Client] Info: Sending telemetry data on issues and performance to Sentry. To disable telemetry, set `options.telemetry` to `false`.
[@sentry/nextjs - Client] Warning: Didn't find any matching sources for debug ID upload. Please check the `sourcemaps.assets` option.
 ✓ Compiled successfully
 ✓ Linting and checking validity of types    
 ✓ Collecting page data    
 ✓ Generating static pages (6/6)
 ✓ Collecting build traces
 ✓ Finalizing page optimization

Route (app)                              Size     First Load JS
┌ ○ /                                    5.52 kB         188 kB
├ ○ /_not-found                          1.02 kB         183 kB
├ ƒ /api/sentry-example-api              0 B                0 B
└ ○ /sentry-example-page                 2.03 kB         184 kB
+ First Load JS shared by all            182 kB
  ├ chunks/449-d179011c12838fef.js       89.9 kB
  ├ chunks/52774a7f-ab0852fb3e7c5017.js  35.9 kB
  ├ chunks/fd9d1056-1ddaa04915180e67.js  53.8 kB
  └ other shared chunks (total)          2.54 kB


○  (Static)   prerendered as static content
ƒ  (Dynamic)  server-rendered on demand

Machine: win10

Do you have your SENTRY_AUTH_TOKEN set in .env?

Yes token is saved in .env I removed just for test and saw different error:

[@sentry/nextjs - Node.js] Warning: No auth token provided. Will not create release. Please set the `authToken` option. You can find information on how to generate a Sentry auth token here: https://docs.sentry.io/api/auth/

Soo sentry can reach token.