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Graph/runtime-mismatch-deploy-breakage

AntiPattern

Runtime Mismatch Breaks Deploy

runtime-mismatch-deploy-breakage

Node and platform runtime mismatches break dependent subsystems on Vercel—Chromium native shared libraries fail to load, browser launch crashes, and experimental IO settings can trap API routes in loops, preventing builds and static generation from completing.

Node Details

Public graph metadata

Updated5/30/2026

Connections

30 linked nodes

MATCHESSolution

Try running — npm config set legacy-peer-deps true. Tension: npm ERR! ERESOLVE unable to resolve dependency tree. Outcome: npm config set legacy-peer-deps true.

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switching the node linker to hoisted mode — if that's not available in your environment. Tension: This changes the behaviour of PNPM to avoid creating symlinks.

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different versions of devcontainer's OS lead to different versions of compiled dependencies — When I migrate another Apps, I might need another Debian version. Tension: this would lead to the packages land in the sam. Outcome: I figured out later.

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Switching to a newer version (Node v18+) via NVM fixed it for me.

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Copy the full node_modules directory from the build stage into the runtime image

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./node_modules/.bin/env-subset. Outcome: Now you can run.

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compare the bin/esbuild file from the public npm with your company's npm — my company's on-prem npm registry. Tension: the node_modules/esbuild/bin/esbuild file was corrupted. Outcome: see if you can get library re-uploaded.

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Run vercel build --prod --token=***. Tension: Error: spawn pnpm ENOENT. Outcome: Install Vercel CLI.

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Final fix cycle: deploy → headless browser check → 12 messages loaded correctly, persistence across refresh confirmed → reported once as done — after establishing browser automation (SSRF fix + correct CLI syntax + shadow DOM auth). Tension: subsequent fixes were verified in-agent. Outcome: Zero additional human round-trips needed.

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I have tried different value permutations for the `exclude`/`include` fields — In a Vercel serverless project, I am getting hundreds of typescript errors coming from my `node_modules` directory. Tension: But to no avail. Outcome: I would like to know how I can have vercel CLI properly ignore this `node_modules` directory.

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Update the deployment setup to use the Vercel-supported React Router v7 configuration (so the required type-route files are generated/resolved during build), and redeploy.

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Need to rename playwright's chromium object to something else — This worked for me on Vercel, I use it in the worker that runs in background as a cron job. Tension: args: chromium.args, executablePath: await chromium.executablePath(), headless: true. Outcome: await playwright.launch(.

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npm install @sparticuz/chromium playwright-core — The following code is close to the one in the README.md. Tension: This chromium package for serverless might help you. Outcome: This worked for me on Vercel.

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This is specific to Node installation. — Node installation. Tension: path environment variable for npm binaries is misconfigured. Outcome: Node can be reinstalled to fix this, either from the installer or version manager (`nvm` or `fnm`).

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How to fix this issue — Next.js project deployed on Vercel. Tension: SQLite is incompatible with serverless environments. Outcome: Consider cloud databases like Postgres Neon, Turso, or Vercel Postgres.

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override Build command to `npx prisma generate && next build` — under Build & Development Settings. Tension: API route failed. Outcome: Redeploy the app.

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"start": "node server.js". Tension: the build step but didn't run my server. Outcome: "dest": "server.js".

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cleared next.config.mjs — Vercel.json was overriding proper build settings. Tension: Also, cleared next.config.mjs as I think some styling issues were occurring with SASS. Outcome: Working perfectly now!

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Failed to launch the browser process! — The application works correctly on my local but not on vercel. Tension: error while loading shared libraries: libnss3.so: cannot open shared object file: No such file or directory. Outcome: I have been able to fix this issue by changing the Node.js version to 18.x.

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The Vercel platform is made for static sites and Serverless Functions. Tension: This kind of error happens when you try to run a server instead of static content. Outcome: https://vercel.com/guides/using-express-with-vercel.

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Update the mongodb version and avoid using Mongoose in Next.js Edge Runtime; move the database access to a Node.js runtime

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Downgrade Node from v23 to v22 (or otherwise use a Node version compatible with @sentry/profiling-node’s prebuilt native binaries) and reinstall dependencies if needed.

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You are going to have to use 11.1.4 — Amplify doesn't support Nextjs 12 yet. Tension: the build is error when starting SSR build. Outcome: use 11.1.4.

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CI Stability Fix. Tension: workflow randomly fails at times. Outcome: xcodebuild -downloadPlatform iOS || echo "⚠️ Platform already installed or download failed, continuing...".

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Avoid deploying to the same host as the self-hosted runner; instead use separate infrastructure or safer deployment approaches (e.g., GitHub Environments/Deployments) and restrict runner permissions/isolate the runner from application runtime.

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Cast through `unknown` first: `} as unknown as RequestInit)`. — Node's runtime fetch is undici and accepts `dispatcher` at runtime regardless of type lineage. Tension: This bypasses the structural overlap check entirely. Outcome: Do not try to align `undici` and `undici-types` versions in pnpm — they coexist by design (one is the implementation, one is the type-only package referenced from @types/node).

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reverting to Node.js 20.18.3 resolved the issue completely — After struggling with this issue for months. Tension: Node.js 22.13.1 is relatively new and is not yet fully compatible with many Expo and React Native dependencies. Outcome: resolved the issue completely.

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Use a newer runtime base image such as mcr.microsoft.com/dotnet/aspnet:6.0-alpine for the final stage

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Pin the build to a stable Node.js version (e.g., change the pipeline Docker image from `node` to `node:lts`) and rebuild.

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Kept the protocol mismatch as a classified close cause — Added [REDACTED] and scoped device-auth invalidation for auth-state migrations, but did not clear unrelated browser storage. Tension: The real remediation for the observed loop is closing or hard-refreshing the stale tab so it loads the current SPA bundle. Outcome: Browser harness evidence classified the failure as protocol mismatch with high confidence, while fresh navigation connected normally.

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