suddenly my go functions are crashing with the following: panic: no such file or directory goroutine 1 [running]: main.checkForLambdaWrapper() /vercel/path0/main__vc__go__.go:24 +0x14a main.main() /vercel/path0/main__vc__go__.go:29 +0x13 this is only on new builds. (for some context, this seems to…

This has been resolved as of Friday Jan 23 at 21:42 UTC. New Go function deployments after that time should work as expected. We’ve added some missing regression tests to prevent similar issues. Sorry for the trouble here.

There’s another community post with 404 debugging tips that might be helpful. Please give these solutions a try and let us know how it goes. [image] Debugging 404 Errors Discussions Sometimes things don’t go as expected when deploying a website. If you se…

the last functioning deploy was 21 hours ago (January 21, 2026 06:58:42 PM ET)

looks like something similar happened here- Encountering no such file or directory goroutine 1 [running]: main.checkForLambdaWrapper() /vercel/path0/main__vc__go__.go · vercel/community · Discussion #6531 · GitHub

okay this looks like a regression from something on the vercel side here’s the file where the panic is occuring, there’s a wrapper file expected in the runtime that is loaded as an env var but doesn’t seem to be found at that path - vercel/packages/go/main.go at 3bf2458ad57a795cf6618d329cdfcfa17c7…

I have the exact same issue. Any solution?

yeah, I’m experiencing the same issue: [image] Fixing /opt/wrapper: does not exist error in Vercel PHP functions Discussions I’m having the same issue for a Go project deployed to Vercel. The same deployment that worked a few days ago can no longer be re…

FYI it appears that even with some workarounds to wipe out that broken env var, all user-set env vars (I’m including from integrations here as well) are now absent on functions (e.g. i can’t see a var I set or db credentials from neon)

I have the same issue. Started seeing this since yesterday. Build worked but functions crashing. panic: no such file or directory goroutine 1 [running]: main.checkForLambdaWrapper() /vercel/path0/main__vc__go__.go:24 +0x14a main.main() /vercel/path0/main__vc__go__.go:29 +0x13 panic: no such f…

newly built go functions suddenly panic'ing

Help

zhammer (Zach Hammer) January 23, 2026, 8:18pm 9

@xjasonlyu weirdly it says your post was flagged by the community and hidden but clicking on your profile led me to Fixing /opt/wrapper: does not exist error in Vercel PHP functions which is helpful so thanks.

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newly built go functions suddenly panic'ing

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