# Unable to set up the vercel environment during deploying the site.

[jajos12]

When I after following every instruction I ran vercel from the cli, I also I have tried from the vercel website but it says that it is having a problem the problem log is as follows :

 Creating an optimized production build ...

✓ Compiled successfully ✓ Linting and checking validity of types Collecting page data .tl [VercelPostgresError]: VercelPostgresError - 'missing_connection_string': You did not supply a 'connectionString' and no 'POSTGRES_URL' env var was found. at tf (C:\Users\My\Programming\nextjs-dashboard.next\server\app\seed\route.js:60:5026) at Object.get (C:\Users\My\Programming\nextjs-dashboard.next\server\app\seed\route.js:60:6072) at C:\Users\My\Programming\nextjs-dashboard.next\server\app\seed\route.js:1:3990 at t.a (C:\Users\My\Programming\nextjs-dashboard.next\server\webpack-runtime.js:1:866) at 1507 (C:\Users\My\Programming\nextjs-dashboard.next\server\app\seed\route.js:1:3883) at t (C:\Users\My\Programming\nextjs-dashboard.next\server\webpack-runtime.js:1:127) at C:\Users\My\Programming\nextjs-dashboard.next\server\app\seed\route.js:1:1176 at t.a (C:\Users\My\Programming\nextjs-dashboard.next\server\webpack-runtime.js:1:866) at 2920 (C:\Users\My\Programming\nextjs-dashboard.next\server\app\seed\route.js:1:967) at t (C:\Users\My\Programming\nextjs-dashboard.next\server\webpack-runtime.js:1:127) { code: 'missing_connection_string' }

Build error occurred Error: Failed to collect page data for /seed at C:\Users\My\Programming\nextjs-dashboard\node_modules.pnpm\next@15.0.0-rc.0_react-dom@19.0.0-rc-f994737d14-20240522_react@19.0.0-rc-f994737d14-20240522\node_modules\next\dist\build\utils.js:1274:15 at process.processTicksAndRejections (node:internal/process/task_queues:95:5) { type: 'Error' } Collecting page data . ELIFECYCLE  Command failed with exit code 1.

[guzmanpdro]

Here's the solution, greetings 👨‍💻

[ZachAlba]

This can also be resolved by ignoring the failed deployment and skipping ahead to the part where you set up Postgres and your .env file, and then redeploying. At least I believe that's the step that fixed the error for me after some trial and error.

[Kashyap-Pandya]

having same issues , will try what @ZachAlba said. nvm didn't saw @guzmanpdro link. that did the trick. thank you

[kaijuh]

I followed the solution as posted by @guzmanpdro which solved the issue of deployment .

After the successful deployment as outline there, these are the steps I followed:

1. I added the folder with the route.ts file once again (app/seed/route.ts)
2. I copy pasted this code https://github.com/vercel/next-learn/blob/main/dashboard/starter-example/app/seed/route.ts
3. run pnpm i @vercel/postgres in your terminal to install the Vercel Postgres SDK
4. Ensure your local development server is running with pnpm run dev and navigate to localhost:3000/seed in your browser.
5. When finished, you will see a message "Database seeded successfully" in the browser.

   Once completed, you can delete this file.

Here are all the steps above https://nextjs.org/learn/dashboard-app/setting-up-your-database

I can then run queries and keep following along the tutorial

Cheers