STL•6d ago

libuv assertion with Convex Auth and Node.js 23.10 on Windows

I'm following the Next.js quickstart with npm create convex@latest. Everything was working, including npm run dev, until I followed the Convex Auth setup instructions with npx @convex-dev/auth. Now, npm run dev always fails with:

D:\GitHub\mysterious_convex_things>node --version
v23.10.0

D:\GitHub\mysterious_convex_things>npm run dev

> mysterious_convex_things@0.1.0 predev
> convex dev --until-success && node setup.mjs --once && convex dashboard

✔ 00:25:01 Convex functions ready! (2.03s)
Opening https://dashboard.convex.dev/d/careful-cricket-653 in the default browser...
Assertion failed: !(handle->flags & UV_HANDLE_CLOSING), file c:\ws\deps\uv\src\win\async.c, line 76

D:\GitHub\mysterious_convex_things>node --version
v23.10.0

D:\GitHub\mysterious_convex_things>npm run dev

> mysterious_convex_things@0.1.0 predev
> convex dev --until-success && node setup.mjs --once && convex dashboard

✔ 00:25:01 Convex functions ready! (2.03s)
Opening https://dashboard.convex.dev/d/careful-cricket-653 in the default browser...
Assertion failed: !(handle->flags & UV_HANDLE_CLOSING), file c:\ws\deps\uv\src\win\async.c, line 76

This looks like it might be related to my use of the latest Node.js 23.10 because I saw https://github.com/nodejs/node/issues/56645 . Is this a known issue? Do I have any way to get around this other than downgrading Node.js to the long-term support release 22.x (which will be the next thing I try)?

GitHub

libuv assertion on Windows with Node.js 23.x · Issue #56645 · nod...

Version 23.x Platform Windows Subsystem No response What steps will reproduce the bug? Write the following file as registryServer.mjs: registryServer.mjs The original file is https://github.com/nod...

2 Replies

Convex Bot•6d ago

Thanks for posting in <#1088161997662724167>. Reminder: If you have a Convex Pro account, use the Convex Dashboard to file support tickets. - Provide context: What are you trying to achieve, what is the end-user interaction, what are you seeing? (full error message, command output, etc.) - Use search.convex.dev to search Docs, Stack, and Discord all at once. - Additionally, you can post your questions in the Convex Community's <#1228095053885476985> channel to receive a response from AI. - Avoid tagging staff unless specifically instructed. Thank you!

STLOP•5d ago

I downgraded Node.js to v22.14.0 LTS and Convex Auth works now. FYI since when v23 works its way into an LTS release, you'll probably hear about this from other Windows users.

libuv assertion with Convex Auth and Node.js 23.10 on Windows

Did you find this page helpful?