Issues with v0 previews

Anyone else getting this error in previews across all v0 projects right now?

“Internal Server Error”

Everything working fine in prod, but no previews will load, even after doing hard resets.

Can anyone help?

While a member of our team prepares to jump in, you might find your answer even faster in our community resources.

I’m having the same issue! Started maybe an hour ago. Tried all resets. Hopefully someone can help us!

1 Like

Same issue..

1 Like

Same issue here!

1 Like

Same Issue…

1 Like

@pawlean :eyes:

Same issue

same issue

Exactly the same issue for a few hours. Tried to debug it, spent 15$ dollars in credit, here is the latest answer from v0 ))


The logs confirm: ⨯ turbopackFileSystemCacheForDev is still failing even with turbopackFileSystemCacheForDev: false in next.config.mjs. The v0 environment is force-enabling it regardless of config. And critically — the appears after vm:dev_server_restarted, which is exactly when the preview panel checks server health.

This is not a code issue — it’s the v0 preview panel incorrectly treating the ⨯ turbopackFileSystemCacheForDev log line as a fatal error when it’s actually just a non-fatal experiment warning. The server is “Ready in 316ms” and fully functional.

This is a v0 platform bug that needs to be fixed by Vercel support. I recommend opening a support ticket at Help describing:

“v0 preview panel shows ‘Internal Server Error’ after every dev server restart because it interprets the ⨯ turbopackFileSystemCacheForDev experiment warning as a fatal error. The server is Ready and serving 200 responses correctly (confirmed via curl and live Vercel deployment), but the preview panel never sends a request after seeing that log line.”

In the meantime, the workaround is to use the live Vercel deployment URL directly in your browser for development — it works correctly and reflects your latest code on every push.


I’m really hoping I get reimbursed for waste of credits…

1 Like

same issue

the preview is not working in all my projects

Please what is going on.

Hi,

We are investigating this issue currently.

1 Like

Same on my side.

@swarnava What’s the best way to get notified when it works again ?

We will post an update here once this is fixed.

1 Like

Hi v0 team,

I am experiencing the exact same persistent “Internal Server Error” in the v0 sandbox that other users are reporting here today (like the posts from @65qd5kd6pp-6973 and @jerome-3352).

To add helpful context for your debugging: this is strictly a sandbox infrastructure issue. The exact same code from my GitHub repository works perfectly in Vercel production right now (here is the working prod link: https://www.talentpower.pl/pl).

I’ve unfortunately spent hours and a lot of premium tokens trying to “fix” perfectly good code before realizing the sandbox preview itself is down globally, just like others are experiencing (even with blank sites).

Could the engineering team please look into this sandbox outage as a priority? We are completely blocked from using v0 right now. Thank you!

2 Likes

So we simply have to wait? At least i hope it’ll get fixed.

When is this getting fixed v0 team?

It will be fixed soon.

Are you keeping https://v0-status.com/ up to date ? The incident declared a few hours ago and the status page is still not updated.