[▲ Vercel Community](/) · [Categories](/categories) · [Latest](/latest) · [Top](/top) · [Live](/live) [Help](/c/help/9) # No valid entrypoint found. Valid entrypoints are - Hono 682 views · 12 likes · 14 posts Muhideen Mujeeb Adeoye (@mujeebmuhideen) · 2025-08-29 · ♥ 3 While trying to deploy Hono, I was getting this error, and this started about 5 hours ago. Take note that this is an existing project on Vercel, and I have deployed today multiple time before I started getting this error. I thought it may be because of a code change; I switched back to the main branch, which is the same code in production, but I got the same error both in the Vercel platform and CLI.  charles (@charlesqu76-5842) · 2025-08-30 · ♥ 1 same issue, bro. Deployed successfully the last day, but today it shows this error with the same code. Lawrence Li (@lawrenceli) · 2025-08-31 same issue here. it’s hono app. no code changes pushed. there is src/index.js file existing in the repo. Jjason685 (@jjason685) · 2025-08-31 · ♥ 1 also happening to me this is insane this isn’t fixed yet - express app Rudi Persson (@rudipersson) · 2025-08-31 · ♥ 1 Same my with my Hono project on Vercel Muhideen Mujeeb Adeoye (@mujeebmuhideen) · 2025-09-01 · ♥ 1 Please any help here Lawrence Li (@lawrenceli) · 2025-09-01 it still doesn’t work. David (@drgdfyi) · 2025-09-01 · ♥ 2 Hey all, this is happening because your main export is not a `new Hono()` app/api. At the moment, the only way you can deploy to Vercel is if your main export is `Hono`.. not `OpenAPIHono` or anything else they’ve got. You can still use them though but you’ll need to do something like this (simplified example): ``` // THIS NEEDS TO BE EXPORTED AT THE END const app = new Hono(); // OpenAPI sub-app or whatever else you want const api = new OpenAPIHono(); api.doc("/openapi", { openapi: "3.0.0", info: { title: "Name API", version: "1.0.0", }, }); api.get( "/", Scalar({ url: "/openapi", pageTitle: "Name API", theme: "saturn" }) ); // Register typed routes on the OpenAPI router registerHealthRoutes(api); registerExampleRoutes(api); // Mount OpenAPI router at root - THIS IS IMPORTANT SO YOU CAN HAVE BOTH app.route("/", api); // EXPORT THE MAIN HONO APP export default app; ``` Hope this helps! Lawrence Li (@lawrenceli) · 2025-09-02 thanks for the reply. this still doesn’t work. my main export is a Hono app instance… Example code here. `lib/server.ts` will be compiled as the main export file (https://github.com/RSSNext/rsshub-vercel/blob/main/src/index.js). https://github.com/DIYgod/RSSHub/blob/master/lib/server.ts https://github.com/DIYgod/RSSHub/blob/master/lib/app-bootstrap.tsx David (@drgdfyi) · 2025-09-02 · ♥ 1 Hmmm, in that case I have no idea tbh. I just basically went with the default turborepo + hono starter from the Vercel examples and that worked initially. It exports a `new Hono()` app at the end. Then I changed that to the open api version and things started breaking at that point. Thats why I went back to just exporting Hono as it is Amy Egan (@amyegan) · 2025-09-02 Do you have a `src/index.js` or `src/index.ts` file? The deployment should pick that up automatically https://hono.dev/docs/getting-started/vercel Muhideen Mujeeb Adeoye (@mujeebmuhideen) · 2025-09-02 · ♥ 2 Following what @drgdfyi suggested works for but I’m kind of curious what change in your end as the deployment was working before but all of a sudden it stoped working on Friday Lawrence Li (@lawrenceli) · 2025-09-02 Yes, there is. The source code up above I quoted will be compiled into a `index.js` file under the directory`src`. This is the compiled file: https://github.com/RSSNext/rsshub-vercel/blob/main/src/index.js Lawrence Li (@lawrenceli) · 2025-09-06 [quote="lawrenceli, post:10, topic:21135"] `export default (await import('./app-bootstrap')).default;` [/quote] the root cause is here. we cannot use dynamic export since last change. make it sync will be a valid entrypoint： ``` export { default } from './app-bootstrap'; ```
