ErrLookup › dotnet/yarp
dotnet/yarp
A toolkit for developing high-performance HTTP reverse proxy applications. · C# · 430 source files
Analyzed at bd11867bee on 2026-08-13. 81 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| Invalid Debian version format | validation | error | python, debian, version, regex, apt, package-index |
| SHA256 mismatch for : expected , got | exception | critical | python, debian, sha256, checksum, gpg, apt, mirror, security, package-index |
| Signature verification failed | exception | critical | python, debian, gpg, gpgv, signature, security, keyring, apt |
| Could not find checksum for | exception | error | python, debian, apt, release-file, checksum, package-index, mirror |
| Failed to download , Status Code | exception | error | python, debian, download, http, apt, mirror, retry-bug |
| No was found for the id ' '. | validation | error | configuration, policy-resolution, runtime, missing-registration, yarp |
| More than one found with the same identifier. | validation | error | configuration, startup, di-registration, duplicate-policy, yarp |
| Unsupported compression format | validation | error | python, debian, deb, tarfile, compression, xz, gz, zst, extraction, apt |
| Failed to download after attempts. | exception | error | python, debian, download, retry, timeout, network, apt |
| Could not find 'data.tar.*' in | exception | error | python, debian, deb, ar, extraction, file-format, apt |
| An error occurred when reading the request body from the… | exception | error | network, request-body, client-disconnect, io-error, streaming |
| The timeout was not applied for route | exception | critical | pipeline, timeout, middleware, configuration, ordering |
| A non-empty CustomMetadata value is required | validation | error | transforms, metadata, configuration, sample, yarp |
| {string.Join(";", transformValues.Keys)} | validation | error | yarp, config, transforms, query-string |
| Replacing the YARP outgoing request HttpContent is not… | exception | error | transformer, request-body, api-misuse, httpcontent |
| Unable to load or apply the proxy configuration. | exception | critical | configuration, startup, wrapper-exception, validation, config-provider |
| Routing Endpoint is missing | exception | critical | pipeline, routing, endpoint, metadata, misconfiguration |
| A consumer may not be null | validation | error | telemetry, di-registration, null-check, yarp |
| SPDY requests require HTTP/1.1 support, but outbound… | exception | error | network, protocol, http2, upgrade, configuration |
| Expected status 409 Conflict! | exception | error | test, http2, scenario, test-client, yarp |
| The request body copy was canceled. | exception | warning | network, request-body, timeout, cancellation, streaming, grpc |
| The proxy config is invalid. | exception | critical | configuration, validation, startup, routes, clusters |
| An outgoing HTTP/1.1 Upgrade request is required to proxy… | exception | error | network, protocol, websocket, http2, upgrade, configuration |
| Configuration Filter Error: Substitution for | exception | error | configuration, environment-variables, config-filter, sample, startup |
| Error resolving destinations for cluster | exception | error | configuration, destination-resolution, dns, service-discovery, startup |
| Missing required services. Did you call… | exception | critical | kubernetes, di, service-registration, certificates, startup |
| The is missing the . | exception | error | feature, pipeline, route-model, api-misuse, middleware |
| At least one IProxyConfigProvider is required. | exception | critical | configuration, startup, di, config-provider |
| Unsupported request method | exception | error | protocol, connect, forward-proxy, method, api-misuse |
| An uninitialized, or 'default', ValueStopwatch cannot be… | exception | error | stopwatch, uninitialized, struct, timing, yarp |
| is missing. | exception | error | feature, pipeline, api-misuse, middleware |
| Unexpected parameters for RequestHeader | validation | error | yarp, config, transforms, headers |
| The transform contains more parameters than expected | validation | error | transforms, config, validation, yarp |
| This version of YARP is incompatible with the current… | exception | critical | version-compat, output-cache, reflection, aspnetcore, startup |
| Routing Endpoint wasn't set for the current request. | exception | critical | pipeline, routing, middleware, endpoint, startup |
| ConfigureHttpClient will override the custom… | exception | error | configuration, di, httpclient, registration-conflict, startup |
| The consumer must implement at least one… | validation | error | telemetry, di-registration, interface, validation, yarp |
| A non-empty CustomTransform value is required | exception | error | transforms, configuration, validation, sample |
| Chosen destination has no model set | exception | error | forwarder, destination, config-reload, race-condition, runtime |
| One or more exceptions thrown by ResourceInformerCallback. | exception | error | kubernetes, informer, callback, aggregate-exception, event-dispatch |
| 'headerName' cannot be null or empty. | validation | error | yarp, transforms, argument-validation, headers, response, custom-transform |
| Unexpected parameters for ResponseHeader | validation | error | yarp, config, transforms, headers, response |
| Header values must be not be empty. | validation | error | routing, header-match, argument-validation, yarp |
| TConsumer must implement at least one I*TelemetryConsumer… | validation | error | telemetry, di-registration, interface, generic, validation, yarp |
| A header name is required. | validation | error | configuration, routing, header-matcher, validation |
| IProxyConfigProvider.GetConfig returned a null value. | exception | error | configuration, config-provider, null-reference, contract-violation, custom-provider |
| is not available. Http.sys delegation is only supported… | exception | critical | httpsys, delegation, server, windows, platform, startup |
| Expected additional args. | validation | error | cli, args, test-client, defensive, yarp |
| The consumer must implement at least one IMetricsConsumer… | validation | error | telemetry, metrics, di-registration, interface, validation, yarp |
| rate: Wait(count= ) exceeds limiter's burst | exception | error | rate-limiting, kubernetes, throttling, burst, validation |
| The route config format has changed, routes are now objects… | exception | error | configuration, schema-migration, config-provider, startup |
| Read bytes, expected 0 after sending Goodbye. | exception | error | test, http-upgrade, scenario, test-client, yarp |
| The IReverseProxyFeature Destinations collection was not… | exception | error | middleware, forwarder, pipeline-ordering, reverse-proxy-feature |
| Unknown transform | validation | error | transforms, config, yarp |
| Expected to receive a text message, got | exception | error | test, websockets, scenario, test-client, yarp |
| Unexpected parameters for ResponseTrailer | validation | error | yarp, config, transforms, trailers, response |
| Expected status 101 Switching Protocols! | exception | error | test, http-upgrade, scenario, test-client, yarp |
| IProxyConfig.ChangeToken has a null value. | exception | error | configuration, config-provider, null-reference, change-token, contract-violation |
| ' ' cannot be null or empty. | validation | error | transforms, query-string, argument-validation, yarp |
| Header values must not be specified when using | validation | error | routing, header-match, argument-validation, yarp |
| Current request can't be delegated. Either the request body… | exception | error | httpsys, delegation, request-body, response-started, ordering |
| Header values must have at least one value. | validation | error | configuration, routing, header-matcher, validation |
| Expected to receive EndOfMessage = true. | exception | error | test, websockets, scenario, framing, test-client, yarp |
| The http client must be of type HttpMessageInvoker, not… | exception | error | forwarder, httpclient, httpmessageinvoker, streaming, performance |
| Read bytes, expected 1. | exception | error | test, http-upgrade, scenario, test-client, yarp |
| The IReverseProxyFeature Cluster was not set. | exception | error | middleware, delegation, cluster-config, reverse-proxy-feature |
| Session affinity is disabled for cluster | exception | error | session-affinity, config, yarp |
| Failed to resolve host | exception | error | network, dns, service-discovery, runtime, yarp |
| 'key' cannot be null or empty. | validation | error | transforms, query-string, argument-validation, yarp |
| Query parameter values must not be empty. | validation | error | routing, query-match, argument-validation, yarp |
| TConsumer must implement at least one IMetricsConsumer… | validation | error | telemetry, metrics, di-registration, interface, generic, validation, yarp |
| Invalid destination prefix. | exception | error | forwarder, destination, url-validation, configuration |
| Session affinity is disabled for cluster. | exception | error | session-affinity, config, yarp |
| The request cannot be forwarded, the response has already… | exception | error | forwarder, response-started, middleware, pipeline-ordering |
| Unexpected value for Forwarded | validation | error | transforms, forwarded, config, yarp |
| 'routeValueKey' cannot be null or empty. | validation | error | yarp, transforms, argument-validation, headers, routing |
| Query parameter values must have at least one value. | validation | error | routing, query-match, argument-validation, yarp |
| Unexpected arg ' '. | validation | error | cli, args, test-client, yarp |
| Received , expected . | exception | error | test, http-upgrade, scenario, data-integrity, test-client, yarp |
| Query parameter values must not be specified when using | validation | error | routing, query-match, argument-validation, yarp |
| Expected to receive ' ', but got ' '. | exception | error | test, websockets, scenario, data-integrity, test-client, yarp |