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## Bug - [ ] Related issues linked using `fixes #number` - [ ] Integration tests added - [ ] Errors have a helpful link attached, see [`contributing.md`](https://github.com/vercel/next.js/blob/canary/contributing.md) ## Feature - [ ] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR. - [ ] Related issues linked using `fixes #number` - [ ] [e2e](https://github.com/vercel/next.js/blob/canary/contributing/core/testing.md#writing-tests-for-nextjs) tests added - [ ] Documentation added - [ ] Telemetry added. In case of a feature if it's used or not. - [ ] Errors have a helpful link attached, see [`contributing.md`](https://github.com/vercel/next.js/blob/canary/contributing.md) ## Documentation / Examples - [ ] Make sure the linting passes by running `pnpm build && pnpm lint` - [ ] The "examples guidelines" are followed from [our contributing doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)
18 lines
1.1 KiB
Markdown
18 lines
1.1 KiB
Markdown
# `app/` Static to Dynamic Error
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#### Why This Error Occurred
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Inside of one of your `app/` pages, the page was initially generated statically at build time and then during runtime either a fallback path or path being revalidated attempted to leverage dynamic server values e.g. `cookies()` or `headers()`.
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This is a hard error by default as a path generated statically can't switch between types during runtime currently.
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#### Possible Ways to Fix It
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Prevent usage of these dynamic server values conditionally which can cause the static/dynamic mode of the page to differ between build time and runtime.
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Leverage `export const dynamic = 'force-static'` to ensure the page is handled statically regardless of the usage of dynamic server values. Alternatively if you prefer your page to allows be dynamic you can set `export const dynamic = 'force-dynamic'` and it won't attempt to have the page be statically generated.
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### Useful Links
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- [static/dynamic rendering](https://beta.nextjs.org/docs/rendering/static-and-dynamic-rendering)
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- [dynamic server value methods](https://beta.nextjs.org/docs/data-fetching/fetching#server-component-functions)
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