I followed exactly the tutorial, https://nextjs.org/learn/dashboard-app/setting-up-your-database. I got the error:
at tf (/vercel/path0/.next/server/app/seed/route.js:60:5026)
at Object.get (/vercel/path0/.next/server/app/seed/route.js:60:6072)
at /vercel/path0/.next/server/app/seed/route.js:1:3956
at t.a (/vercel/path0/.next/server/webpack-runtime.js:1:866)
at 1507 (/vercel/path0/.next/server/app/seed/route.js:1:3849)
at t (/vercel/path0/.next/server/webpack-runtime.js:1:127)
at /vercel/path0/.next/server/app/seed/route.js:1:1176
at t.a (/vercel/path0/.next/server/webpack-runtime.js:1:866)
at 5064 (/vercel/path0/.next/server/app/seed/route.js:1:967)
at t (/vercel/path0/.next/server/webpack-runtime.js:1:127) {
code: 'missing_connection_string'
}

Build error occurred

Error: Failed to collect page data for /seed
at /vercel/path0/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'
}
 ELIFECYCLE  Command failed with exit code 1.
Error: Command "pnpm run build" exited with 1