{"record":{"id":"aa96d1e7978c35af","repo":"vercel/next.js","slug":"route-workstore-route-used-headers-inside-aa96d1","errorCode":null,"errorMessage":"Route ${workStore.route} used `headers()` 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","messagePattern":"Route (.+?) used `headers\\(\\)` 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","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/next/src/server/request/headers.ts","lineNumber":74,"sourceCode":"      // When using forceStatic we override all other logic and always just return an empty\n      // headers object without tracking\n      const underlyingHeaders = HeadersAdapter.seal(new Headers({}))\n      return makeUntrackedHeaders(underlyingHeaders)\n    }\n\n    if (workUnitStore) {\n      switch (workUnitStore.type) {\n        case 'cache': {\n          const error = createHeadersInUseCacheError(workStore.route)\n          Error.captureStackTrace(error, headers)\n          applyOwnerStack(error)\n          workStore.invalidDynamicUsageError ??= error\n          throw error\n        }\n        case 'unstable-cache':\n          throw createHeadersInUnstableCacheError(workStore.route)\n        case 'generate-static-params':\n          throw new Error(\n            `Route ${workStore.route} used \\`headers()\\` 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`\n          )\n        case 'prerender':\n        case 'prerender-client':\n        case 'validation-client':\n        case 'private-cache':\n        case 'prerender-runtime':\n        case 'prerender-legacy':\n        case 'request':\n          break\n        default:\n          workUnitStore satisfies never\n      }\n    }\n\n    if (workStore.dynamicShouldError) {\n      throw new StaticGenBailoutError(\n        `Route ${workStore.route} with \\`dynamic = \"error\"\\` couldn't be rendered statically because it used \\`headers()\\`. See more info here: https://nextjs.org/docs/app/building-your-application/rendering/static-and-dynamic#dynamic-rendering`","sourceCodeStart":56,"sourceCodeEnd":92,"githubUrl":"https://github.com/vercel/next.js/blob/258b1c1bc05f7099816b88f70b7b3422b24a4b8d/packages/next/src/server/request/headers.ts#L56-L92","documentation":"Error \"Route ${workStore.route} used `headers()` 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\" thrown in vercel/next.js.","triggerScenarios":"headers() is called inside generateStaticParams.","commonSituations":"Using headers at build time inside generateStaticParams where no request exists.","solutions":["Do not call headers() inside generateStaticParams; use params passed to it instead."],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"258b1c1bc05f7099816b88f70b7b3422b24a4b8d","analyzedAt":"2026-09-01T03:35:59.642Z","contentChangedAt":"2026-09-01T03:35:59.642Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}