---
title: 'SSG `fallback: true` Export Error'
---

## Why This Error Occurred

You attempted to export a page with a `fallback: true` return value from `getStaticPaths` which is invalid. `fallback: true` is meant for building pages on-demand after a build has occurred, exporting disables this functionality

## Possible Ways to Fix It

If you would like the `fallback: true` behavior, you must remove `output: 'export'` and remove `next export` in favor of a different [deployment solution](/docs/pages/building-your-application/deploying).

## Useful Links

- [deployment documentation](/docs/pages/building-your-application/deploying#managed-nextjs-with-vercel)
- [`fallback: true` documentation](/docs/pages/api-reference/functions/get-static-paths#fallback-true)