dotnet/aspnetcore
Documented errors, page 2 of 3. Back to dotnet/aspnetcore
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| regex validator requires a non-empty "pattern" parameter. | exception | error | blazor, validation, regex, form-validation, misconfiguration |
| This browser does not support WebAssembly. | exception | critical | webassembly, blazor-wasm, runtime, browser-support, startup |
| withCredentials option was not a 'boolean' or 'undefined'… | validation | error | configuration, validation, cors, credentials, typescript |
| Cannot have empty query parameter names. | exception | error | blazor, querystring, validation, uri |
| There are multiple .NET runtimes present, so a default… | exception | error | js-interop, blazor, dispatcher, multi-runtime, lifecycle |
| Cannot handle type class: | exception | error | signalr, java, reflection, generics, api-misuse |
| could not find global | exception | error | signalr, typescript, environment, runtime, global |
| Invalid Debian version format | exception | error | python, debian, versioning, parsing, cross-build |
| Invalid sequence number or identifier | exception | error | circuit, root-components, rendering, interop, blazor-server |
| ${negotiateResponse.getError()} | exception | error | signalr, java, network, negotiate, server-error |
| The runtime must be loaded before it gets configured. | exception | critical | webassembly, blazor-wasm, runtime, startup, cdn |
| Error reading JSON. | exception | error | signalr, java, protocol, json, parsing |
| Could not find an end component comment for | exception | error | blazor, prerendering, markers, html, ssr |
| An exception occurred while dispatching a location changed… | exception | error | blazor, routing, events, exception-handling |
| Error reading NegotiateResponse | exception | error | signalr, java, negotiate, json, network, parsing |
| Unexpected status code returned from negotiate | http | error | signalr, java, network, negotiate, http |
| The authorization data specifies an authentication scheme… | exception | error | blazor, aspnetcore, authorization, authentication, components |
| Authentication refresh is only supported with HTTP-based… | validation | error | authentication, transport, features, custom-transport |
| Negotiation can only be skipped when using the WebSocket… | exception | error | signalr, java, configuration, negotiate, transport |
| The instance can no longer be read because it has expired… | exception | error | blazor, parameters, lifecycle, async, parameter-view |
| Circuit state is already in progress | exception | error | circuit, state-machine, lifecycle, concurrency, blazor-server |
| The required antiforgery header value | validation | error | antiforgery, aspnetcore, security, csrf, ajax, spa |
| Cannot read uint64 with high order part | exception | error | binary-decoder, interop, serialization, uint64, precision |
| Cannot start the circuit until Blazor Server has started. | exception | error | blazor-server, circuit, boot, lifecycle |
| For a resource, custom loaders must supply a URI string. | exception | error | webassembly, blazor-wasm, loadbootresource, config, startup |
| For instance method calls, assemblyName should be null… | exception | error | js-interop, blazor, dispatcher, instance-method, validation |
| The type does not have a applied to it. | exception | error | blazor, routing, router, notfound, route-attribute, invalidoperationexception |
| Please enter a username. | exception | warning | webauthn, passkey, validation, client-side, identity-sample |
| Cannot read message size. | exception | error | signalr, messagepack, framing, binary-protocol, corruption |
| Could not find checksum for | exception | error | python, debian, release-file, checksum, config, cross-build |
| initialParameters must be an object, even if empty. | validation | error | blazor, root-components, parameters, validation |
| Range validator requires at least one of "min" or "max"… | exception | error | blazor, validation, range, form-validation, misconfiguration |
| The property ' ' is not writable. | exception | error | js-interop, blazor, identifier, property, readonly |
| ' ' is flagged with SingleDelivery, but the selected… | exception | error | blazor, aspnetcore, cascading-parameters, components, configuration |
| ' ' already has a value returning handler. Multiple return… | exception | error | signalr, java, handler-registration, callback, invocation |
| The provider was not found in the providers list of the… | exception | error | blazor, components, sections, lifecycle, invalidoperation |
| The provided identity of type | exception | error | antiforgery, aspnetcore, authentication, claims, security |
| Cannot create a JSObjectReference from the value | exception | error | js-interop, blazor, serialization, object-reference, dotnet |
| Expected data to be of type | exception | error | transport, send, buffer, binary, typescript |
| FileExtensions validator requires a non-empty "extensions"… | exception | error | blazor, validation, fileextensions, form-validation, misconfiguration |
| Trying to send and message while the connection is not… | exception | error | signalr, java, state, concurrency, race-condition |
| Failed to start platform. Reason | exception | critical | blazor-webassembly, mono-runtime, boot, network, csp |
| A valid url is required. | validation | error | signalr, java, argument-validation, url, constructor |
| Invalid end of component comment | exception | error | blazor, prerendering, markers, validation, html |
| Dynamic root components have not been enabled in this… | exception | error | blazor, root-components, startup, lifecycle |
| The HubConnection url must be a valid url. | validation | error | signalr, java, argument-validation, url, redirect |
| The property ' ' is not defined or is not readable. | exception | error | js-interop, blazor, identifier, property, interop |
| Cannot resolve ' '. | exception | error | url, node, environment, configuration |
| Circuit state is in progress | exception | error | circuit, state-machine, lifecycle, concurrency, blazor-server |
| requires a non-null value either for ' ' or ' '. | exception | error | blazor, sections, sectioncontent, configuration, invalidoperationexception |
| Circuit state not initialized | exception | error | circuit, state-machine, lifecycle, blazor-server |
| Unknown value: . | validation | error | signalr, typescript, argument-validation, enum, transport |
| No interop methods are registered for renderer | exception | error | blazor, interop, renderer, lifecycle, race |
| Blazor WebAssembly has not initialized. | exception | error | blazor-webassembly, root-components, lifecycle, initialization |
| The subscriber with the given section ID | exception | error | blazor, components, sections, lifecycle, invalidoperation |
| The value ' ' is not a function. | exception | error | js-interop, blazor, identifier, invocation, type-mismatch |
| Circuit options have already been configured. | exception | error | blazor-server, boot, lifecycle, double-start |
| Either assemblyName or dotNetObjectId must have a non null… | exception | error | interop, jsinvokable, blazor, dispatcher, argument-validation |
| Invocation provides argument(s) but target expects . | exception | error | signalr, java, argument-binding, handler-registration, invocation |
| Unknown log level | validation | error | logging, configuration, validation |
| ' ' has not been initialized. | exception | error | blazor, lifecycle, initialization, routing |
| Expected a handshake response from the server. | exception | error | handshake, protocol, version-mismatch |
| PersistentComponentState already initialized. | exception | error | blazor, state, persistence, lifecycle |
| typeName must be defined when using a descriptor. | exception | error | blazor, prerendering, markers, webassembly, validation |
| Persisting state is only allowed during an OnPersisting… | exception | error | blazor, state, persistence, lifecycle |
| The ' ' selector is not supported. | exception | error | blazor, rendering, selector, dom |
| Could not find ' ' (' ' was undefined). | exception | error | js-interop, blazor, identifier, object-graph, interop |
| MessagePack message was length | exception | error | signalr, java, messagepack, protocol, network, framing |
| No call dispatcher has been set. | exception | critical | js-interop, blazor, dispatcher, startup, lifecycle |
| The HubConnection must be in the Disconnected or… | validation | error | state-machine, url, connection-lifecycle |
| The required antiforgery request token was not provided in… | validation | error | antiforgery, aspnetcore, security, csrf, validation |
| There is already a subscriber to the content with the given… | exception | error | blazor, components, sections, duplicate, invalidoperation |
| Blazor Server has already started. | exception | error | blazor-server, boot, lifecycle, double-start |
| Cannot refresh authentication before the connection is… | validation | error | authentication, connection-state, lifecycle, token |
| Invalid boolean value | exception | error | blazor-custom-elements, attribute-parsing, validation, boolean |
| Invalid message type. | exception | error | signalr, messagepack, messagetype, serialization, programming-error |
| The type ' ' does not have an associated TypeConverter that… | exception | error | blazor, aspnetcore, binding, components, typeconverter |
| Error parsing the sequence | exception | error | blazor, prerendering, markers, server, validation, types |
| Blazor WebAssembly has already started. | exception | error | blazor-webassembly, boot, lifecycle, double-start |
| JS object instance with ID | exception | error | js-interop, blazor, object-reference, disposed, lifecycle |
| Invalid invocation result kind. | exception | error | java, signalr, messagepack, protocol, deserialization |
| Interop methods are not registered for renderer | exception | warning | blazor, interop, renderer, lifecycle, cleanup |
| Invalid input for JSON hub protocol. Expected a string. | validation | error | protocol, json, binary, parsing |
| The antiforgery system has the configuration value | exception | error | antiforgery, aspnetcore, ssl, security, configuration |
| At least one --target or --targets-file argument must be… | exception | error | csharp, dotnet, testing, helix, cli, arguments |
| Invalid input for MessagePack hub protocol. Expected an… | exception | error | signalr, messagepack, type-mismatch, arraybuffer, typescript |
| Received persisted state for circuit ID | exception | critical | circuit, persisted-state, signalr, load-balancing, blazor-server |
| Services cannot be accessed before the component is… | exception | error | blazor, dependency-injection, lifecycle, components |
| The required antiforgery cookie | validation | error | csharp, dotnet, aspnetcore, antiforgery, security, csrf, cookies |
| The current dispatcher does not support synchronous calls… | exception | error | js-interop, blazor, dispatcher, sync, blazor-server |
| The parameter ' ' accepts a complex-typed object so it… | exception | error | blazor-custom-elements, attribute-parsing, object, complex-type |
| Cannot refresh authentication when the connection is not… | validation | error | authentication, state-machine, connection-lifecycle |
| Could not find any element matching selector | exception | error | blazor, rendering, selector, dom, startup |
| The server responded with status | exception | error | network, http, passkey, authentication, blazor |
| Blazor WebAssembly has not started. | exception | error | blazor-webassembly, root-components, lifecycle, ordering |
| Error reading length header. | exception | error | signalr, java, messagepack, protocol, configuration |
| Unable to read the antiforgery request token from the… | exception | error | antiforgery, aspnetcore, form, validation, request-parsing |
| Extension types are not supported | exception | error | java, signalr, messagepack, deserialization, extension-type |
| There is no pending async call with ID | exception | error | js-interop, blazor, async, dispatcher, protocol |
| The field only exists on frames of type . | exception | error | blazor, render-tree, render-frame, render-mode, api-misuse |