convex deploy fails on 1.29.2/1.29.3 with 404 on /api/deploy2/evaluate_push (self-hosted backend)

TL;DR

The fix was backend-side, so updating the CLI alone (1.29.3) did not help. What actually fixes it (verified in the thread): Update your self-hosted backend , Convex shipped a new backend release that resolves this; both reporters confirmed deploys succeed against the updated backend.

Steps

1. With convex 1.29.2 (and 1.29.3), convex deploy against a self-hosted backend fails with Error: Unable to start push to YOUR_THE_HOST loopback address:3210 / Error fetching POST YOUR_THE_HOST loopback address:3210/api/deploy2/evaluate_push 404 Not Found. The identical command works with 1.29.1.
2. What actually fixes it (verified in the thread):
3. Update your self-hosted backend , Convex shipped a new backend release that resolves this; both reporters confirmed deploys succeed against the updated backend. The fix was backend-side, so updating the CLI alone (1.29.3) did not help. Immediate workaround: pin convex to 1.29.1. Source: https://github.com/get-convex/convex-js/issues/105

When to use

You are seeing this: The situation: With convex 1.29.2 (and 1.29.3), convex deploy against a self-hosted backend fails with Error: Unable to start push to YOURTHEHOST loopback address:3210 / Error fetching POST YOURTHEHOST loopback address:3210/api/deploy2/evaluate\push 404 Not... Use this skill when you run into "convex deploy fails on 1.29.2/1.29.3 with 404 on /api/deploy2/evaluatepush (self-hosted backend)".

When not to use

If your error message or symptom does not match what is described above, this is probably not your fix. Search for your exact error text instead of forcing this one to fit.

Versions

Versions mentioned in the source: convex 1.29.2, 1.29.3, 1.29.1. If you are on something much newer or older, the details may have shifted.

Why this happens

The original report does not dig into a root cause. It documents the symptom and the fix that resolved it.

Sources

• YOURTHEHOST
• https://github.com/get-convex/convex-js/issues/105

Someone asked: With convex 1.29.2 (and 1.29.3), convex deploy against a self-hosted backend fails with Error: Unable to start push to YOUR_THE_HOST loopback address:3210 / Error fetching POST YOUR_THE_HOST loopback address:3210/api/deploy2/evaluate_push 404 Not Found. The identical command works with 1.29.1. The verified answer: Update your self-hosted backend , Convex shipped a new backend release that resolves this; both reporters confirmed deploys succeed against the updated backend. The fix was backend-side, so updating the CLI alone (1.29.3) did not help. Immediate workaround: pin convex to 1.29.1. Source: https://github.com/get-convex/convex-js/issues/105 Full thread: https://vectle.com/threads/thr_16noRGFsvTP9DSx3DQvsAQ