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Graph/cluster-124

ClusterConcept

Deployment and Routing Misconfig

cluster-124

Routing and build/deployment misconfiguration break request dispatch: nested paths get duplicated after mounting, backend endpoints appear unserved, and Vercel’s read-only public runtime plus outdated bundling produce incorrect or missing outputs.

Node Details

Public graph metadata

Updated6/23/2026

PageRank0.0001

Connections

50 linked nodes

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Resend emails do not send when Next.js is built with output: "export"

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next.config.mjs with output: "export" prevents emails from being sent

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ReferenceError: require is not defined — on vercel. Tension: it work well in local. Outcome: if i comment this line and try to deploy this work properly but animation not work.

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Error: EACCES: permission denied, unlink '/home/someuser/projects/nextjs-dashboard/.next/app-build-manifest.json'.

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when I use the command : `pnpx prisma generate`, the prisma-nestjs-graphql generator uses prisma version 5.0.0 — I have a problem with the prisma-nestjs-graphql generator and pnpm in my monorepo project. Tension: even if I have specified the version 4.15.0. Outcome: I get the following output.

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FastAPI route works locally on / but fails on Vercel

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`apps/serverless/tsconfig.json` is read by Vercel CLI because it crashes if I remove a curly bracket — The serverless app is part of a Turborepos monorepos (`apps/serverless`);. Tension: There is no root level `tsconfig.json`;. Outcome: I have tried different value permutations for the `exclude`/`include` fields.

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Error occurred prerendering page "/post/1" — I'm trying to deploy a blog written with Next.js v15.3.3 with Vercel. Tension: TypeError: Cannot read properties of null (reading 'useState'). Outcome: Export encountered an error on /post/[slug]/page: /post/1, exiting the build.

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Building/starting a Next.js 14 App Router app with next-pwa fails on staging (Vercel) and production (AWS Amplify), with missing Next server files such as routes-manifest.json and required-server-files.json.

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Expecting not to go to homepage and go to searchparams assigned url. Outcome: check them on Project Settings > Environment Variables.

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Prisma Client could not locate the Query Engine for runtime "rhel-openssl-3.0.x". — when I deploy. Tension: This is likely caused by a bundler that has not copied "libquery_engine-rhel-openssl-3.0.x.so.node" next to the resulting bundle. Outcome: Ensure that "libquery_engine-rhel-openssl-3.0.x.so.node" has been copied next to the bundle or in "generated/prisma".

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GET https://cooking-assistant-phi.vercel.app/static/css/style.css net::ERR_ABORTED 404 (Not Found) — I'm deploying a Flask app to Vercel. Tension: Locally it works perfectly — static files like CSS load and the page looks as expected.

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Tension: the backend doesn’t seem to be serving requests, and the frontend likely fails due to a dependent API call. Outcome: The deployment succeeds (`READY` state).

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Type error: Cannot find module 'chrome-aws-lambda' or its corresponding type declarations. — Vercel raise:. Tension: import chromium from 'chrome-aws-lambda'. Outcome: Error: Command "yarn run build" exited with 1.

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Next.js 15 Image component is not loading from the local host but it is working in Vercel — In my code Next.js 15 Image component. Tension: The image URL also working and I have done the necessary configuration in the next.js config file. Outcome: Disable image optimization temporarily by using the unoptimized attribute.

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During the Next.js 15 build on Vercel, TypeScript reports that the dynamic route page component’s `PageProps.params` type does not match the framework’s expected type because it is expecting `params` to be a `Promise`.

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Cannot read properties of undefined (reading 'email') — in production, I get the following error. Tension: I need to send credentials (email, pwd, and id) via request headers in a GET request. Outcome: This works perfectly in my local environment, but in production.

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it seems to me that the `--prebuilt` tag prevents the whole source code to be shared/deployed to Vercel — deploy a FastAPI app using Github Actions to Vercel. Tension: apparently, Vercel can’t detect `.vercel/output/builds.json` file/folder ev. Outcome: without using the `--prebuilt` tag.

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Deploying a monorepo with a React client and Node/Express server on Vercel using a shared origin fails: the server cannot reliably serve client static files from client/dist, leading to missing/dist errors or 404s for built assets and routing.

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vercel command is not found

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Error: Can't deploy more than one path. Tension: I already tried to delete the vercel.json file as there are two cron jobs defined which according to the vercel AI assistant could possibly cause the issue. Outcome: Verion of Vercel CLI: 37.14.0.

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sometimes the code passes through the await statement, but other times it gets stuck at the await — This code runs without any issues locally, but it hangs when deployed on Vercel. Tension: Sometimes it triggers successfully, while other times it gets stuck at the first call. Outcome: Disable auto pipelining and try running the commands one by one.

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During Vercel builds of a Turborepo using turbo, the build fails to access required environment variables (e.g., DATABASE_URL) even though they are set in the Vercel dashboard. Locally, values from .env.local work, but CI/build cannot find them.

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works perfectly in local development — when I try to make it production-ready on Vercel. Tension: I encounter issues.

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Error: Failed to collect page data for /api/favourites/[drivingSchoolId]. Tension: the build process exits with code 1. Outcome: override Build command to `npx prisma generate && next build`.

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"x-forwarded-host`header with value`foobar-3000.app.github.dev`does not match`origin`header with value`localhost:3000` from a forwarded Server Actions request. Aborting the action.". Tension: the problem is occurring elsewhere in the application. Outcome: Aborting the action.

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When accessing a bad url supposed to be 404 have this error `This Serverless Function has crashed.` — Angular SSR deployed on Vercel Serveless Function. Tension: my angular app routing could never do the job of redirecting to the correct /404 or just display the 404 component.

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Angular SSR deployed on Vercel Serveless Function. Outcome: It also works doing `node dist/project/server/server.mjs` (after a build using server.ts).

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Cannot set properties of undefined (setting 'mode') — inside `.vercel\builders\node_modules\vercel-php\dist\utils.js` of Laravel project directory. Tension: runtimeFiles['php/php'].mode = 33261; // 0755;. Outcome: solved the problem for me.

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I have a route `/property/:id` that includes a button which, when clicked, should redirect to `/profile/:id`. Tension: It only seems to fail when trying to redirect from `/property/:id` to `/profile/:id`. Outcome: in console it shows response 404.

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whenever I send the link to someone else, it says they have to login on Vercel to view the portfolio — deploying it to Vercel. Tension: I've tried checking the settings for any public or private restrictions but either I can't find it or it's not there at all. Outcome: Go to your project settings, here in Deployment protection you can find vercel Authentication setting, turn it off, now you are good to go.

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I'm unsure how to automatically obtain the preview app's URL for visiting it in Cypress tests. — How can I dynamically retrieve the URL of a preview app created on Vercel when a pull request is made in a Next.js project deployed via GitHub? Tension: I want to utilize Cypress for testing purposes on this deployed app. Outcome: can grab the URL of the preview from a github action event.

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But my apis take long time sometimes. — I deployed Express.js to vercel. Tension: I'd like to increase server execution time limit but I'm not sure how can I do it. Outcome: I solved this issue by updating vercel.json.

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got `INFINITE_LOOP_DETECTED` as response — calling vercel API to get a deployment details from GitHub Actions workflow. Tension: What's going wrong in this code? Outcome: it worked correctly.

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Cannot find module '@azure/identity' — I deployed express app to Vercel. Tension: local and it works fine. Outcome: after deploy to vercel, I see this error.

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Deploying to Vercel fails to apply the desired npm install flags (e.g., `--legacy-peer-deps`), causing dependency/peer conflicts during deployment.

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Type error: Module '"@prisma/client"' has no exported member 'Product'. — when i am trying to deploy a project on Vercel. Tension: Everything works fine when i run "npm run build". But when i am trying to deploy a project on Vercel.

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php: error while loading shared libraries: libssl.so.10: cannot open shared object file: No such file or directory — Installing Composer dependencies [START]. Tension: Command "vercel build" exited with 1. Outcome: You need to change the node version to 18.

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You are making an API call at the module level in weather_controller.py. — serverless function that may have a cold start. Tension: This means that the HTTP request is made as soon as the module is imported, which is not ideal. Outcome: Instead, you should make the API call within the `print_current_temperature` function.

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Chromium fails to launch on Vercel because libnss3.so is missing

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Some Next.js Link components started performing full page reloads only on the deployed Vercel site, while the same Links worked client-side locally and on other pages.

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one of my requests to retrieve a photo fails with a 400: BAD_REQUEST error. Code: INVALID_IMAGE_OPTIMIZE_REQUEST — When I execute from my production server. Tension: In staging, the request successfully retrieves this image on the production S3, and production is able to retrieve an image from the staging S3. Outcome: The way I optimized the images was by using an absolute path.

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the Vercel app immediately bounces me back to my log-in screen — deploying with Vercel. Outcome: The token returned by Firebase was getting encrypted by svelte using a private key controlled by an environment variable named `VITE_JWT_KEY`.

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"error": "bad auth: authentication failed" — in production on Vercel. Tension: I don't have any authentication set up for this API. Outcome: My .env file on Vercel was set to an outdated database password.

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"pdo_pgsql" is not enabled on php.ini — I trying to get data from my postgres database on php (with laravel) using vercel. Tension: When i call my api route return error. Outcome: Change runtimes version, in all versions pdo_pgsql is disabled for me.

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The SvelteKit 2 (with Svelte 4) app runs correctly locally but fails during deployment on Vercel with a deployment/runtime error shown in the Vercel logs.

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when try to post a request to api/webhooks I get 504 error gateway timeout — [POST] [middleware: "middleware"] /api/webhooks status=200 then get [POST] /api/webhooks status=504. Tension: Task timed out after 10.02 seconds. Outcome: After adding access from anywhere in mongoDB cluster this issue was also solved.

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le vercel web analytics in my react web app — when your application starts. Tension: There isn't really a specific file where you are supposed to put it. Outcome: it's best to place it in a component that wraps the entire application.

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you wanted to assign a value to UUID — Since `value` is `water_types.id` and it turns out to be `"undefined"`. Tension: you pass `"undefined"`, which cannot be converted into UUID. Outcome: this error.

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EROFS: read-only file system, open '/var/task/public/bb17ad93-017f-4fdf-a2db-713d9a390143.webp' — When i try to upload file to public folder on vercel. Tension: works perfectly fine in my dev environment(local computer) but after deploying to vercel it throws that error. Outcome: you want to persist the file then better to store somewhere, probably in S3.

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