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Graph/env-vars-not-propagated

Pattern

Environment Variables Not Propagated

env-vars-not-propagated

Build and runtime steps fail because environment variables are not correctly passed or loaded across platforms (Next.js/Turbo/Vercel/Xcode/Azure), so code like Prisma or Stripe reads undefined values and deployments diverge by environment.

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Updated6/29/2026

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30 linked nodes

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

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.

next start fails because the frontend runtime cannot find the Next.js binary

Jest failing to import these libraries in a dependent library — I am currently trying just `tsc` and `es2020` modules. Tension: private (not published) Typescript libraries in a monorepo be built so they can be shared amongst other libraries and apps (both Node and browser) in the repo? Outcome: You build all the packages together in one step.

it is not recognized through my SvelteKit website — share a `.env.local` env variables file through my entire Turborepo app. Tension: I could use `dotenv-cli` in the `package.json` scripts but I'd like to avoid it.

functions failing because it was trying to run code in a folder that only contained the path to the folder in the virtual store — After running `pnpm install` inside the Azure Function app package. Tension: `node_modules/@azure/storage-queue` would not have any files, just, `../../../node_modules/.pnpm` symlink which wouldn't work because those files were outside of the Function App and therefore not deployed. Outcome: Add `.npmrc` at root and add `config node-linker=hoisted`.

Installation/build fails in a Next.js/React app with an error involving missing module 'react-dom/server.browser', alongside a runtime ReferenceError for `userouter` in `pages/login.js`.

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.

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.

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.

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.

missing_connection_string': You did not supply a 'connectionString' and no 'POSTGRES_URL' env var was found. — when I was deploying my next application or excute "pnpm run build". Tension: Build error occurred Error: Failed to collect page data for /seed.

Cannot find module '/Users/aidan/work/real-estate/forecasa-serverless-functions-express/api/stateStorage' imported from /Users/aidan/work/real-estate/forecasa-serverless-functions-express/api/companyContact.ts — when running vercel dev.

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

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.

Running `eslint .` in a Next.js 16 app crashed immediately — The eslint.config.mjs used the long-standard Next.js pattern: `new FlatCompat({ baseDirectory })` + `compat.extends('next/core-web-vitals', 'next/typescript')`. Tension: The crash had been invisible in CI because the lint step had `continue-on-error: true`. Outcome: The job reported green while lint hadn't run for weeks.

set `environment` different for every deployment. Outcome: check `window.location.href` for the subdomain.

work perfectly fine on my local machine but fail consistently when executed in GitHub Actions — My setup involves a Next.js 14 app using the App Router, TypeScript, Playwright for testing, and GitHub Actions for CI. Outcome: download an HTML report saved in the last step in your CI.

In GitHub Actions, the same workflow job cannot automatically use environment-specific context (e.g., vars) across multiple target environments. `vars.CLUSTER_URL` is not resolving unless the job specifies an `environment`.

deployed site shows default value from String.fromEnvironment — I deploy flutter web with `Github Actions` in `.github/workflows/workflow.yml`. Tension: However, deployed site shows default value from String.from. Outcome: String.fromEnvironment('SUPABASE_URL', defaultValue: "check1");.

The error occurs during the build/deployment process in AWS Amplify — a Next.js (v13+) API route that handles Stripe webhooks. Tension: I can't pinpoint the exact cause. Outcome: Solved by using this version of SDK.

Error: Neither apiKey nor config.authenticator provided — when I deploy firebase functions. Tension: Since the update, it refuses 'process.env.STRIPE_SECRET'. Outcome: works fine when I hardcode the test key as string.

these variables are not available — however when in production on azure. Tension: i cant figure out how to set them properly. Outcome: the only time the variables work is if i set them explicitly in next.config.

Need to use different next.config.js configurations for different environments (static/prod/dev), but next build has no --config option to select an alternate config file.

process.env.GITHUB_ID is 'string | undefined' and cannot be declared to clientID — put environment variables in the `cliendID` and `clientSecret `. Tension: type error. Outcome: before this code, it was showing type error.

Tension: I needed to query my Strapi backend from my NuxtJS frontend via Apollo, using a JWT authentication token. Outcome: With `.env`, when I was using `process.env.MY_KEY`, the value of the key was displayed in plain text in `/_nuxt/app.js`, in the browser.

Running an old React app on Node.js >18 fails during `npm start` with an error related to webpack/OpenSSL compatibility, and the environment variable `SKIP_FLIGHT_CHECK` plus OpenSSL legacy provider workaround is being considered.

How should I protect sensitive variables from .env file? Tension: sensitive variables from .env file.

I tried to access the value using `ProcessInfo` but it did not work. — during API call. Tension: I have created a `.env` file where I have set the value of the key. Outcome: You can set Environment Variables for Xcode.

Whether putting sensitive API keys in Next.js .env.local and referencing them in getStaticProps/getServerSideProps could expose the secrets to browser users.

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