ErrLookup › restsharp/RestSharp

restsharp/RestSharp

Simple REST and HTTP API Client for .NET · C# · 130 source files

Analyzed at 6a50821692 on 2026-08-13. 34 documented errors.

Code / MessageTypeSeverityTags
Error occured while deserializing the response
exception error deserialization, response, serialization, exception, configuration
The type must contain a public, parameterless constructor.
exception error csv, deserialization, reflection, constructor, csvhelper
Unable to find a serializer for
exception error serialization, configuration, dataformat, invalid-operation
Response content is null
exception error csv, deserialization, null-response, csvhelper
Duplicate header names exist
exception error headers, request, validation, duplicate, argument
value must be non-negative
exception error argument, polyfill, index, netstandard, validation
If the type implements IEnumerable
exception error csv, deserialization, reflection, collection, csvhelper
Supplied parameter is not an XML parameter
exception error xml, serialization, parameters, type-guard, argument
Failed to put file as content because flag…
exception error file-upload, request, configuration, multipart, mutual-exclusion, argument
Failed to put file as content because POST parameters were…
exception error file-upload, request, parameters, configuration, argument
Using query parameters in the base URL is not supported for…
exception error oauth, oauth1, url, query-parameters, authentication
AdvancedResponseWriter is not null. Only one response…
exception error request, response-writer, configuration, argument, mutual-exclusion
Request body serialized to null
exception error serialization, request-body, null, argument
Couldn't parse the value of
exception error xml, deserialization, type-conversion, primitive
Non-string body found with unsupported content type
exception error request-body, content-type, serialization, argument
Class cannot have two properties marked with…
exception error xml, deserialization, attribute, content-mapping
Invalid character found in header
exception error header, security, header-injection, request
Only HMAC-SHA1, HMAC-SHA256, and RSA-SHA1 are currently…
exception error oauth, oauth1, signature, cryptography, authentication
Failed to put file as content because body parameters were…
exception error file-upload, request-body, request, configuration, mutual-exclusion, argument
Parameter value is null
exception error xml, serialization, null, argument, request-body
Token endpoint returned an invalid response
exception error oauth, oauth2, authentication, json, token
Cannot access a disposed object.
exception critical dispose, lifecycle, httpclient, object-disposed
ResponseWriter is not null. Only one response writer can be…
exception error request, response-writer, configuration, argument, mutual-exclusion
A default parameters with the same name has already been…
exception error parameters, default-parameters, duplicate, configuration
The specified value is not a valid Host header string.
exception error header, host, security, request
Request resource doesn't contain a valid scheme for an…
exception error url, configuration, base-url, request
Token request failed with status
exception error oauth, oauth2, authentication, network, token
Both BaseUrl and Resource are empty
exception error uri, base-url, request, configuration, argument
BaseUrl must be set when using a client factory
exception error configuration, base-url, httpclient, client-factory, argument
Parameter cannot be an empty string
exception error validation, argument, guard
Cannot set request body using default parameters. Use…
exception error parameters, default-parameters, body, request
Invalid content type string
exception error content-type, validation, mime
Binary data format needs a byte array as value
exception error body, binary, request, parameter
File not found
exception error file, upload, filesystem, request