vercel/next.js · error · StaticGenBailoutError

Route ${workStore.route} with `dynamic = "error"` couldn't b

Error message

Route ${workStore.route} with `dynamic = "error"` couldn't be rendered statically because it used `cookies()`. See more info here: https://nextjs.org/docs/app/building-your-application/rendering/static-and-dynamic#dynamic-rendering

What it means

Error "Route ${workStore.route} with `dynamic = "error"` couldn't be rendered statically because it used `cookies()`. See more info here: https://nextjs.org/docs/app/building-your-application/rendering/static-and-dynamic#dynamic-rendering" thrown in vercel/next.js.

Source

Thrown at packages/next/src/server/request/cookies.ts:56

  const workStore = workAsyncStorage.getStore()
  const workUnitStore = workUnitAsyncStorage.getStore()

  if (workStore) {
    if (workUnitStore && !isRequestApiAllowedInCurrentPhase(workUnitStore)) {
      throw new Error(
        `Route ${workStore.route} used \`cookies()\` inside \`after()\` while rendering. This is not supported. If you need this data inside an \`after()\` callback, use \`cookies()\` outside of the callback. See more info here: https://nextjs.org/docs/app/api-reference/functions/after`
      )
    }

    if (workStore.forceStatic) {
      // When using forceStatic we override all other logic and always just return an empty
      // cookies object without tracking
      const underlyingCookies = createEmptyCookies()
      return makeUntrackedCookies(underlyingCookies)
    }

    if (workStore.dynamicShouldError) {
      throw new StaticGenBailoutError(
        `Route ${workStore.route} with \`dynamic = "error"\` couldn't be rendered statically because it used \`cookies()\`. See more info here: https://nextjs.org/docs/app/building-your-application/rendering/static-and-dynamic#dynamic-rendering`
      )
    }

    if (workUnitStore) {
      switch (workUnitStore.type) {
        case 'cache':
          const error = createCookiesInUseCacheError(workStore.route)
          Error.captureStackTrace(error, cookies)
          applyOwnerStack(error)
          workStore.invalidDynamicUsageError ??= error
          throw error
        case 'unstable-cache':
          throw createCookiesInUnstableCacheError(workStore.route)
        case 'generate-static-params':
          throw new Error(
            `Route ${workStore.route} used \`cookies()\` inside \`generateStaticParams\`. This is not supported because \`generateStaticParams\` runs at build time without an HTTP request. Read more: https://nextjs.org/docs/messages/next-dynamic-api-wrong-context`
          )

View on GitHub (pinned to 258b1c1bc0)

Solutions

1. Remove dynamic = "error" or stop using cookies() in the route.

When it happens

Trigger: cookies() is used in a route with dynamic = "error".

Common situations: A statically forced route reads cookies, which requires dynamic rendering.

AI-assisted analysis of vercel/next.js@258b1c1bc0 (2026-08-19). Data as JSON: /api/errors/c6770ce059cb6e87. Report an issue: GitHub.