Next 15 breakpoints and source map issues

[anthonyalayo]

Summary

Hey all,

Is anyone else encountering an issue with Next 15 where breakpoints don't align with the source? When I downgrade to Next 14, it doesn't occur. I would expect more complaints about this, but maybe everyone is just using print statements?

Additional information

No response

Example

No response

[icyJoseph]

In which Next 15 version? I recently debugged an issue on my site, with a debugger statement, didn't experience any issue.

[anthonyalayo]

I commented on this related issue that I think is covering the same problem. I also tried to write some sort of webpack config that can override the config from nextjs, but that had issues too.

[jukkaleh-atoz]

When using turbopack on dev breakpoints where broken on next 15.1.7

  "scripts": {
    "dev": "next dev --turbopack",
  },

After removing --turbopack they started working again

[anthonyalayo]

@jukkaleh-atoz with turbopack, i had no breakpoints at all. Without turbopack, I had misaligned breakpoints.

[anthonyalayo]

@icyJoseph is there any relief you can provide us?

[anthonyalayo]

Related discussion happening in the WebStorm issue tracker:
https://youtrack.jetbrains.com/issue/WEB-70462/Cant-debug-nextjs-app-next-dev-turbopack-turbo-breaks-debugging.