Cloudflare DevelopersCD
Cloudflare Developers•4mo ago•
6 replies
satya

Error running npm run preview with OpenNext + Cloudflare (setNextjsServerWorkingDirectory failure)

Hi, I’m trying to run my Next.js app with OpenNext + Cloudflare preview (npm run preview), but I’m hitting a runtime error.

Environment:

Next.js: [^14.0.4]
Node.js: [v22.12.0]
Wrangler: 4.38.0
@opennextjs/cloudflare: ^1.8.3
OS: macOS

Steps I followed from here: https://opennext.js.org/cloudflare/get-started#existing-nextjs-apps

Error shown:

[wrangler:error] Error: no such file or directory
    at Object.chdir (node-internal:public_process:60:17)
    at setNextjsServerWorkingDirectory (.open-next/server-functions/default/handler.mjs:...)
    at .open-next/server-functions/default/handler.mjs:...
    at null.<anonymous> (.open-next/worker.js:47:39)


What I checked:
- .open-next/server-functions/default/ exists and contains handler.mjs, , .next/, etc.
- Running from project root.
Tried cleaning .open-next and rebuilding but got same error.

Question:
- Is this a known issue with OpenNext on Wrangler preview?
- Why would setNextjsServerWorkingDirectory fail even though the folder and files exist?

Any workaround to make the local server run successfully ?

#workers-help
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