ErrLookup › vercel/next.js
vercel/next.js
The React Framework · JavaScript · 4,421 source files
Analyzed at 0ae8c72462 on 2026-08-06. 257 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| Source at index ${sourceIndex} not found | exception | error | treemap, data-integrity, index-out-of-bounds, bundle-analyzer |
| Failed to fetch ${url} | exception | error | network, fetch, bundle-analyzer, connection-refused, cors |
| Unknown option: --${rawKey} | validation | error | cli, argument-parsing, dev-validation, benchmark, typo |
| Dev server did not become ready within ${timeoutMs}ms | exception | error | dev-server, timeout, dev-validation, benchmark, startup |
| Invalid --top value: ${topRaw} | validation | error | cli, argument-parsing, analyze-profiles, validation, numeric |
| No artifact run found in ${requested}. Expected a results.js | exception | error | analyze-profiles, artifacts, filesystem, missing-file, benchmark |
| Invalid numeric value for --${key}: ${value} | validation | error | cli, argument-parsing, numeric, validation, render-pipeline |
| --routes cannot be empty | validation | error | cli, argument-parsing, routes, validation, render-pipeline |
| Each route must start with '/': ${route} | validation | error | cli, argument-parsing, routes, validation, url, render-pipeline |
| Invalid --scenario value: ${scenarioRaw}. Use e2e|minimal-se | validation | error | cli, argument-parsing, scenario, validation, render-pipeline |
| Invalid --stream-mode value: ${streamModeRaw}. Use node | validation | error | cli, argument-parsing, stream-mode, validation, render-pipeline |
| Command failed: ${command} ${args.join(' ')} (exit ${code}) | exception | error | subprocess, build, render-pipeline, spawn, exit-code |
| Missing ${NEXT_BIN}. Build Next.js first (pnpm --filter=next | exception | error | build, setup, render-pipeline, missing-binary, bootstrap |
| Server process exited before becoming ready (is port already | exception | error | server, port-conflict, eaddrinuse, render-pipeline, startup, benchmark |
| Server did not become ready within ${timeoutMs}ms | exception | error | server, timeout, render-pipeline, startup, benchmark, readiness |
| Port ${port} is already serving responses — another server i | exception | error | server, port-conflict, render-pipeline, pre-flight, benchmark |
| Request failed (${response.status}) for ${url} | exception | warning | http-status, request, measurement, render-pipeline, benchmark, load |
| [inspect] ${route}: document contains __next_f but the extra | exception | error | flight-scripts, regex, markup-change, render-pipeline, version-drift, next-js |
| [inspect] ${route}: not an App Router document (no __next_f) | exception | error | benchmark, app-router, validation, render-pipeline |
| [${label}] warmup: all ${batchSize} requests failed — server | exception | error | benchmark, network, server, warmup |
| Invalid numeric value for --${key}: ${value} | validation | error | cli, validation, argument-parsing |
| --routes cannot be empty | validation | error | cli, validation |
| Each route must start with '/': ${route} | validation | error | cli, validation, routing |
| --samples must be at least 1, got ${samples} | validation | error | cli, validation |
| --cpu-throttle must be at least 1, got ${cpuThrottle} | validation | error | cli, validation, chrome-devtools |
| Command failed: ${command} ${args.join(' ')} (exit ${code}) | exception | error | cli, subprocess, build |
| Server process exited before becoming ready (is port already | exception | error | server, startup, port-conflict |
| Server did not become ready within ${timeoutMs}ms | exception | error | server, timeout, startup |
| Port ${port} is already serving responses — another server i | exception | error | server, port-conflict, validation |
| Trace has no navigationStart for ${pageUrl} | exception | error | trace, chrome-devtools, parsing, performance |
| Missing ${NEXT_BIN}. Build Next.js first (pnpm --filter=next | exception | error | build, setup, missing-binary |
| Failed to fetch ${url}, too many retries | exception | error | network, retry, http, vercel |
| Failed to link project ${linkRes.stdout} ${linkRes.stderr} ( | exception | error | vercel, deployment, cli, auth |
| Failed to deploy project ${linkRes.stdout} ${linkRes.stderr} | exception | error | vercel, deployment, build, cli |
| Default export is missing in {resource_path} | exception | error | metadata-routes, app-router, turbopack, build |
| id property is required for every item returned from generat | exception | error | sitemap, metadata-routes, app-router, validation |
| id property is required for every item returned from generat | exception | error | app-router, metadata-routes, image-metadata, generateimagemetadata, validation |
| Attempted to call the default export of {server_module_path} | exception | error | rsc, react-server-components, use-client, client-reference, turbopack, server-client-boundary |
| Attempted to call {export_name}() from the server but {expor | exception | error | rsc, react-server-components, use-client, client-reference, named-export, turbopack |
| NEXT_EVAL_TARBALL not set. Run evals via `pnpm eval` from th | exception | error | evals, tooling, environment, ci, next-build |
| npm install ./next.tgz failed (exit ${exitCode}): ${stderr} | exception | error | evals, tooling, npm, tarball, ci, environment |
| `src` and `dest` are required | validation | error | create-next-app, internal-api, validation, filesystem |
| Failed to download: ${url} | exception | error | create-next-app, network, github, download, examples |
| This is an internal example for testing the CLI. | exception | error | create-next-app, examples, reserved-name, testing |
| Unsupported package manager: ${packageManager} | validation | error | create-next-app, typegen, package-manager, exhaustiveness, typescript |
| `@next/font` is only available in Next.js 13 and newer. | exception | error | font, version-mismatch, next-13, deprecation, semver |
| @next/font/google failed to run or is incorrectly configured | exception | error | font, google-fonts, configuration, deprecation, module-resolution |
| `@next/font` is only available in Next.js 13 and newer. | exception | error | font, local-font, version-mismatch, next-13, deprecation, semver |
| @next/font/local failed to run or is incorrectly configured. | exception | error | font, local-font, configuration, deprecation, module-resolution |
| Could not find documentation for Next.js ${tag}. This versio | exception | error | next-codemod, agents-md, git, github, version-mismatch, documentation |
| docs folder not found in cloned repository | exception | error | next-codemod, agents-md, git, sparse-checkout, documentation, filesystem |
| Failed to find package manager | exception | error | next-codemod, package-manager, lockfile, environment, defensive |
| Failed to uninstall "${packageToUninstall}". Please uninstal | exception | error | codemod, package-manager, dependency-management, subprocess |
| Failed to install "${packageToInstall}". Please install it m | exception | error | codemod, package-manager, dependency-management, subprocess |
| Failed to install dependencies | exception | error | codemod, package-manager, dependency-management, subprocess |
| Failed to find the expected output file "${outputPath}" gene | exception | error | codemod, eslint, lint, migration |
| Failed to run "${command}" to migrate the legacy ESLint conf | exception | error | codemod, eslint, lint, migration, subprocess |
| An instant() scope is already active. Nesting instant() call | exception | error | testing, playwright, instant-navigation, async, concurrency |
| `${name}` is only available in a Server Component. | exception | error | cache, server-components, client-components, next-cache |
| `catchError` can only be used in Client Components. | exception | error | error-handling, client-components, server-components, react-server |
| Method unavailable on `ReadonlyURLSearchParams`. Read more: | exception | error | router, search-params, readonly, app-router, use-search-params |
| Next.js has blocked a javascript: URL as a security precauti | exception | error | security, xss, router, navigation, javascript-url |
| hmrRefresh can only be used in development mode. Please use | exception | error | router, hmr, development, production, environment |
| Cannot prefetch '${href}' because it cannot be converted to | exception | error | router, prefetch, url-validation, link, app-router |
| `forbidden()` is experimental and only allowed to be enabled | exception | error | experimental, auth, forbidden, config, auth-interrupts |
| `unstable_isUnrecognizedActionError` can only be used on the | exception | error | server-components, client-components, app-router, server-actions |
| Not a redirect error | exception | error | redirect, error-handling, app-router, type-guard |
| Server Action "${actionId}" was not found on the server. Re | exception | error | server-actions, deployment, app-router, version-mismatch |
| An unexpected response was received from the server. | exception | error | server-actions, network, app-router, error-handling |
| `unauthorized()` is experimental and only allowed to be used | exception | error | experimental, auth, app-router, config |
| Failed to fetch _devPagesManifest.json. Is something blockin | exception | error | development, network, dev-server, pages-router |
| Failed to load stylesheet: ${href} | exception | error | css, assets, deployment, cdn |
| No router instance found. You should only use "next/router" | exception | error | pages-router, app-router, server-components, ssr |
| NextRouter was not mounted. https://nextjs.org/docs/messages | exception | error | pages-router, react-context, testing, app-router |
| Using Client Components is not allowed in this environment. | exception | error | server-components, client-components, rsc, bundling |
NEXT_EXPORT_ERROR Could not find a production build in the '${distDir}' directory. Try building yo | exception | critical | static-export, build, config, next-export |
| The provided export path '${pathname}' doesn't match the '${ | exception | error | static-export, routing, dynamic-routes, build |
| Page with dynamic = "error" encountered dynamic data method | exception | error | app-router, dynamic-rendering, build, ssr |
| Error for page ${page}: ${SERVER_PROPS_EXPORT_ERROR} | exception | error | static-export, pages-router, ssr, build |
| Error: you provided query values for ${path} which is an au | exception | error | static-export, pages-router, query-params, build |
| Proxy request failed: ${resp.status} | exception | error | testmode, experimental, network, fetch, testing |
| Proxy request aborted [${request.method} ${request.url}] | exception | error | testmode, experimental, mocking, fetch, testing |
| @rspack/core is not available. Please make sure the appropri | exception | critical | bundler, rspack, build, configuration, environment |
| request failed with status ${res.status} | exception | error | network, swc, build, registry, native-binary |
| request failed with empty body | exception | error | network, swc, build, registry, native-binary |
| Invalid fallback option: ${fallbackField}. Fallback option m | validation | error | prerender, manifest, dynamic-routes, build |
| > Couldn't find any `pages` or `app` directory. Please creat | validation | critical | project-structure, routing, build, configuration |
| > `pages` and `app` directories should be under the same fol | validation | error | project-structure, routing, migration, build |
| Failed to get registry from "${pkgManager}". | exception | error | network, package-manager, swc, build, environment |
| Error serializing props returned from `${method}` in "${page | exception | error | serialization, getstaticprops, getserversideprops, build, data-fetching |
| Error serializing `${path}` returned from `${method}` in "${ | exception | error | serialization, getstaticprops, getserversideprops, build, data-fetching |
| Error serializing `${path}` returned from `${method}` in "${ | exception | error | serialization, getstaticprops, getserversideprops, build, data-fetching |
| Error serializing `${path}` returned from `${method}` in "${ | exception | error | serialization, invariant, getstaticprops, build |
| Error serializing `${path}` returned from `${method}` in "${ | exception | error | serialization, invariant, array, getstaticprops, build |
| Error serializing `${path}` returned from `${method}` in "${ | exception | error | serialization, getstaticprops, getserversideprops, build, data-fetching |
| metadataBase is not a valid URL: ${metadataBase} | validation | error | metadata, app-router, url, configuration |
| Failed to resolve pattern "${patterns.join(',')}": ${error.m | exception | error | build, glob, routing, config |
| The key "${key}" under "env" in ${config.configFileName || ' | validation | error | config, environment-variables, build |
| Could not parsetsconfig.json. Please make sure it contains s | exception | error | typescript, config, json, build |
| It looks like you're trying to use TypeScript but do not hav | exception | error | typescript, dependencies, build, installation |
| It looks like you're trying to use Partytown with next/scrip | exception | error | partytown, script, experimental, dependencies, build |
| Could not parse output from TypeScript's --showConfig. | exception | error | typescript, cli, config, json, experimental |
| `after()`: Argument must be a promise or a function | validation | error | after, api, runtime, validation |
| `after()` will not work correctly, because `waitUntil` is no | exception | error | after, runtime, serverless, waituntil |
| `after` was called outside a request scope. Read more: https | exception | error | after, runtime, request-scope, api |
| Invalid ${options.type} header | validation | error | accept-header, i18n, request-parsing, runtime |
| Invalid redirect arguments. Please use a single argument URL | validation | error | api-routes, redirect, runtime, validation |
| Preview data is limited to 2KB currently, reduce how much da | validation | error | preview-mode, api-routes, cookies, runtime |
| Invalid urlPath provided to revalidate(), must be a path e.g | validation | error | api-routes, revalidation, cache, runtime, validation |
| Invalid response ${res.status} | exception | error | api-routes, revalidation, cache, network, runtime |
| Failed to revalidate ${urlPath}: ${err.message} | exception | error | api-routes, revalidation, cache, runtime, error-handling |
| API route returned a Response object in the Node.js runtime, | exception | error | api-routes, edge-runtime, node-runtime, development |
| Invalid JSON | http | error | api-routes, body-parsing, json, request-parsing, client-error |
| Body exceeded ${limit} limit | http | error | api-routes, body-parsing, limits, client-error |
| Invalid body | http | error | api-routes, request-body, http, encoding |
| Could not determine origin for forwarded Server Actions requ | exception | error | server-actions, deployment, configuration, self-hosted |
| Body exceeded ${bodySizeLimit} limit. To configure the body | http | error | server-actions, body-size-limit, edge-runtime, file-upload |
| Failed to find Server Action. This request might be from an | exception | error | server-actions, deployment-skew, version-mismatch, edge-runtime |
| Server Action arguments list is too long (${args.length}). M | exception | error | server-actions, arguments, limits, stack-overflow |
| Route ${store.route} with `dynamic = "error"` couldn't be re | exception | error | dynamic-rendering, static-generation, route-config, prerender |
| Invalid Server Action payload: failed to decrypt. | exception | error | server-actions, encryption, security, deployment |
| Invalid sample: Defining cookies via a "cookie" header is no | validation | error | instant-validation, samples, cookies, headers, build |
| Draft mode cannot be enabled during build-time instant valid | exception | error | instant-validation, draft-mode, build, validation |
| Draft mode cannot be disabled during build-time instant vali | exception | error | instant-validation, draft-mode, build, validation |
| Expected sample param value for segment '${rawSegment}' to b | validation | error | instant-validation, samples, params, catch-all, build |
| Expected sample param value for segment '${rawSegment}' to b | validation | error | instant-validation, samples, params, dynamic-segment, build |
| Taint can only be used with the taint flag. | exception | error | taint, security, experimental-react, configuration |
| `${callingExpression}` was called outside a request scope. R | exception | error | dynamic-api, request-scope, use-search-params, async-storage |
| process.env.NEXT_DEPLOYMENT_ID is missing but runtimeServerD | exception | critical | deployment-id, configuration, startup, experimental |
| Invalid "${name}" provided, expected a finite number of seco | validation | error | configuration, next-config, validation, cache |
| Specified distDir is not a string, found type "${typeof valu | validation | error | configuration, next-config, build-output, validation |
| The 'public' directory is reserved in Next.js and can not be | validation | error | config, dist-dir, static-assets |
| Invalid distDir provided, distDir can not be an empty string | validation | error | config, dist-dir, data-loss |
| Specified pageExtensions is not an array of strings, found " | validation | error | config, routing, page-extensions |
| Specified pageExtensions is an empty array. Please update it | validation | error | config, routing, page-extensions |
| Specified pageExtensions is not an array of strings, found " | validation | error | config, routing, page-extensions, type-safety |
| The experimental.allowDevelopmentBuild option requires NODE_ | validation | error | config, experimental, environment, node-env |
| The "sassOptions.functions" option is not supported when usi | validation | error | config, sass, turbopack, bundlers |
| `experimental.cssChunking: "graph"` is only supported with T | validation | error | config, css, turbopack, bundlers, experimental |
| `experimental.cssChunking: "strict"` is only supported with | validation | error | config, css, webpack, bundlers, experimental |
| `experimental.cssChunking: false` is only supported with web | validation | error | config, css, webpack, bundlers, experimental |
| `experimental.turbopackRustReactCompiler` is only supported | validation | error | config, react-compiler, turbopack, bundlers, experimental |
| `experimental.turbopackRustReactCompiler` requires `reactCom | validation | error | config, react-compiler, experimental |
| `experimental.cachedNavigations` requires `cacheComponents` | validation | error | config, caching, experimental, cache-components |
| `partialPrefetching` requires `cacheComponents` to be enable | validation | error | config, caching, prefetch, cache-components |
| `experimental.ppr` has been merged into `cacheComponents`. T | validation | error | config, deprecation, ppr, cache-components |
| Specified "i18n" cannot be used with "output: export". See m | validation | error | config, i18n, static-export, output |
| Specified assetPrefix is not a string, found type "${typeof | validation | error | config, asset-prefix, type-safety |
| Specified basePath is not a string, found type "${typeof res | validation | error | config, base-path, type-safety, routing |
| Specified basePath /. basePath has to be either an empty str | validation | error | config, base-path, routing |
| Specified basePath has to start with a /, found "${result.ba | validation | error | config, base-path, routing, validation |
| Specified basePath should not end with /, found "${result.ba | validation | error | config, basepath, routing, next-config |
| Specified images should be an object received ${typeof image | validation | error | config, images, next-config, type-validation |
| Specified images.localPatterns should be an Array received $ | validation | error | config, images, localpatterns, next-config |
| Specified images.remotePatterns should be an Array received | validation | error | config, images, remotepatterns, next-config |
| Specified images.remotePatterns must have protocol "http" or | validation | error | config, images, remotepatterns, security, next-config |
| Invalid assetPrefix provided. Original error: ${error} | validation | error | config, images, assetprefix, url-parsing, next-config |
| Specified images.domains should be an Array received ${typeo | validation | error | config, images, domains, next-config |
| Specified images.loader property (${images.loader}) also req | validation | error | config, images, loader, next-config |
| Specified images.loader property (${images.loader}) cannot b | validation | error | config, images, loader, loaderfile, next-config |
| Specified images.loaderFile does not exist at "${absolutePat | validation | error | config, images, loaderfile, filesystem, next-config |
| Server Actions Size Limit must be a valid number or filesize | validation | error | config, server-actions, bodysizelimit, validation, next-config |
| Config options `experimental.proxyClientMaxBodySize` and `ex | validation | error | config, proxy, middleware, migration, next-config |
| Config options `experimental.proxyPrefetch` and `experimenta | validation | error | config, proxy, middleware, prefetch, migration, next-config |
| Config options `experimental.externalProxyRewritesResolve` a | validation | error | config, proxy, middleware, rewrites, migration, next-config |
| Config options `skipProxyUrlNormalize` and `skipMiddlewareUr | validation | error | config, proxy, middleware, url-normalization, migration, next-config |
| Client Max Body Size must be a valid number (bytes) or files | validation | error | config, proxy, bodysizelimit, validation, next-config |
| Client Max Body Size must be larger than 0 bytes | validation | error | config, proxy, bodysizelimit, validation, next-config |
| The NEXT_DEPLOYMENT_ID environment variable value "${process | validation | error | config, deployment, ci, environment-variables, next-config |
| Failed to find the root directory of the project. This is a | exception | critical | config, file-tracing, standalone, bug, next-config |
| Specified i18n should be an object received ${i18nType}. See | validation | error | config, i18n, routing, next-config, type-validation |
| Specified i18n.locales should be an Array received ${typeof | validation | error | config, i18n, type-error |
| Specified i18n.defaultLocale should be a string. See more in | validation | error | config, i18n, type-error |
| Specified i18n.domains must be an array of domain objects e. | validation | error | config, i18n, type-error |
| Invalid i18n.domains values: ${invalidDomainItems.map((item: | validation | error | config, i18n, validation |
| Specified i18n.locales must be an array of locale strings e. | validation | error | config, i18n, dead-code, type-error |
| Specified i18n.locales contains invalid values (${invalidLoc | validation | error | config, i18n, validation |
| Specified i18n.defaultLocale should be included in i18n.loca | validation | error | config, i18n, validation |
| Specified i18n.locales contains the following duplicate loca | validation | error | config, i18n, validation, deduplication |
| Specified i18n.localeDetection should be undefined or a bool | validation | error | config, i18n, type-error |
| Invalid "devIndicator.position" provided, expected one of ${ | validation | error | config, dev-indicators, validation |
| Invalid "cacheHandlers" provided, expected an object e.g. { | validation | error | config, cache, type-error |
| Invalid handler fields configured for "cacheHandlers": ${inv | validation | error | config, cache, validation, filesystem |
| `experimental.useCache` cannot be disabled when `cacheCompon | validation | error | config, cache-components, experimental, migration |
| `experimental.turbopackGenerateComponentChunks` has been mov | validation | error | config, turbopack, experimental, migration, deprecation |
| `experimental.turbopackChunkingHeuristics` has been renamed | validation | error | config, turbopack, experimental, migration, deprecation |
| The "target" property is no longer supported in ${configFile | validation | error | config, deprecation, migration |
| Configuring Next.js via '${basename(unsupportedConfig)}' is | validation | error | config, filesystem, initialization |
| Fatal next config errors found in ${configFileName} that mus | validation | critical | config, schema, validation, migration |
| Failed to read file contents of ${filename}. | exception | error | source-maps, dev-server, filesystem |
| Failed to parse source map URL for ${filename}. | exception | error | source-maps, dev-server, parsing |
| Unknown source map type for ${filename}: ${buffer.typeFull}. | exception | error | source-maps, dev-server, build |
| Failed to parse source map for ${filename}. | exception | error | source-maps, dev-server, json |
| Failed to parse source map ${sourceMapFilename}. | exception | error | source-maps, dev-server, filesystem |
| Turbopack is not supported on this platform (${process.platf | exception | critical | turbopack, platform, wasm, bundler |
| failed to decode param | exception | error | webpack, url-encoding, dev-server, routing |
| ${sourceURL}: Invalid source map. Only conformant source map | exception | error | source-maps, turbopack, dev-server, error-overlay |
| ${sourceURL}: Invalid source map. Only conformant source map | exception | error | source-maps, webpack, dev-server, error-overlay |
| You can not have a '_next' folder inside of your public fold | validation | error | filesystem, dev-server, config, public-dir |
| Page "${page}" is missing exported function "generateStaticP | validation | error | static-export, app-router, generate-static-params, config |
| Page "${page}" is missing param "${pathname}" in "generateSt | validation | error | static-export, app-router, generate-static-params, config |
| getStaticPaths with "fallback: blocking" cannot be used with | validation | error | static-export, pages-router, get-static-paths, config |
| getStaticPaths with "fallback: true" cannot be used with "ou | validation | error | static-export, pages-router, get-static-paths, config |
| Module `sharp` not found. Please run `npm install --cpu=wasm | exception | error | image-optimization, sharp, dependencies, wasm |
| "url" parameter is not allowed | http | error | image-optimization, ssrf, security, network |
| "url" parameter is valid but upstream response timed out | http | error | image-optimization, network, timeout, upstream |
| "url" parameter is valid but upstream response is invalid | http | error | image-optimization, network, redirect, upstream |
| "url" parameter is valid but internal response is invalid | http | error | image-optimizer, internal-route, response |
| The requested resource isn't a valid image. | http | error | image-optimizer, invalid-content, content-type |
| "url" parameter is valid but image type is not allowed | http | error | image-optimizer, svg, security, config |
| Unable to optimize image and unable to fallback to upstream | http | error | image-optimizer, optimization-failure, native-binary |
| Invalid revalidate value "${revalidateVal}" on "${route}", m | validation | error | fetch, revalidate, isr, config |
| cache: 'force-cache' used on fetch for ${fetchUrl} with 'exp | validation | error | fetch, fetch-cache, config-conflict |
| cache: 'no-store' used on fetch for ${fetchUrl} with 'export | validation | error | fetch, fetch-cache, config-conflict |
| maxPostponedStateSize must be a valid number (bytes) or file | validation | error | config, ppr, size-limit, experimental |
| Failed to decode path param(s). | exception | error | routing, url-encoding, path-params |
| Could not find a production build in the '${opts.config.dist | exception | critical | production, build, dist-dir, deployment |
| Both ${MIDDLEWARE_FILENAME} file "./${path.relative(cwd, mid | exception | error | middleware, proxy, migration, dev-server |
| Using a self signed certificate is only supported with `next | exception | error | https, ssl, dev-server, production |
| Failed to set Next.js data cache for ${ctx.fetchUrl || pathn | exception | warning | cache, fetch-cache, size-limit, dev |
| Invalid escape character at the end. | exception | error | node-options, cli, env, parsing |
| Unterminated string | exception | error | node-options, cli, env, parsing |
| '${value}' is not a non-negative number. | exception | error | cli, validation, commander, arguments |
| Manifest file is empty | exception | critical | manifest, build, corruption, deployment |
| An error occurred while loading the instrumentation hook | exception | error | instrumentation, production, startup, server |
| Could not find a production build in the '${this.distDir}' d | exception | critical | build, production, dist-dir, startup, deployment |
| To use middleware you must provide a `hostname` and `port` t | exception | error | middleware, custom-server, hostname, port, edge |
| Middleware is not supported in minimal mode. Please remove t | exception | error | middleware, edge, environment-variable, minimal-mode |
| "next start" does not work with "output: export" configurati | exception | error | export, static, output-config, production, startup |
| Pass either `webpack` or `turbopack`, not both. | exception | error | bundler, turbopack, webpack, rspack, custom-server, config |
| Only custom servers can pass `webpack`, `turbo`, or `turbopa | exception | error | bundler, custom-server, config, turbopack, webpack |
| The server has not been instantiated properly. https://nextj | exception | error | server, config, startup, programmatic |
| Only zero or one arguments to font functions are currently s | validation | error | next-font, google-font, font, rust, config |
| Missing weight for {}. Available weights: {} | validation | error | next-font, google-font, font, weight, rust |
| Unexpected `variable` in weight array for font {}. You only | validation | error | next-font, google-font, font, weight, variable, rust |
| Unknown weight {} for font {}. Available weights: {} | validation | error | next-font, google-font, font, weight, rust |
| Unknown style {} for font {}. Available styles: {} | validation | error | next-font, google-font, font, style, rust |
| Invalid display value {} for font {}. Available display valu | validation | error | next-font, google-font, font, display, css, rust |
| Axes can only be defined for variable fonts. | validation | error | next-font, google-font, font, axes, variable, rust |
| Axes can only be defined for variable fonts when the weight | validation | error | next-font, google-font, font, axes, variable, weight, rust |
| reading file {} | exception | error | turbopack, filesystem, io, permissions, turbo-tasks-fs |
| gave up applying effects after {MAX_RETRIES} retries; repeat | exception | error | turbopack, turbo-tasks, effects, build, collision, turbo-tasks |
| Failed to parse Node.js version: '{}' | exception | error | turbopack, environment, node-version, semver, runtime |
| Node.js version parse error | exception | error | node-version, edge-environment, configuration, semver |
| Complex patterns into wildcard exports fields are not implem | exception | error | resolve, exports, wildcard, alias, not-implemented |
| failed to convert rope into string | exception | error | parsing, utf8, encoding, ecmascript |
| Unknown syntax for length, expected value with unit ({len}) | exception | error | svg, image-size, parsing, dimensions |
| Unknown unit {unit} | exception | error | svg, image-size, units, internal |
| Unknown syntax for viewBox ({viewbox}) | exception | error | svg, image-size, viewbox, parsing |
| Invalid file type {:?} | exception | error | postcss, json-config, config, misleading-message |
GenericFailure invalid type for RouteHas: {type_} | exception | error | napi, routes, route-has, configuration, next-config |
InvalidFilename file {name_or_path} is too long ({len}) exceeds filesystem limit of {limit} | exception | error | filesystem, path-length, output, invalid-filename |
| serialization = "hash" only makes sense with cell = "compare | validation | critical | proc-macro, turbo-tasks, value-attributes, compile-error |
| hash = "manual" only makes sense with serialization = "hash" | validation | critical | proc-macro, turbo-tasks, value-attributes, compile-error |
| evict = "last" is only valid with serialization = "skip" | validation | critical | proc-macro, turbo-tasks, value-attributes, eviction, compile-error |
| missing positional argument for the trace file path | panic | critical | cli, trace-server, arguments, panic |
| failed to set ctrl_c handler | panic | critical | signals, ctrl-c, exit-handler, panic, tokio |