ErrLookup › grpc-ecosystem/grpc-gateway

grpc-ecosystem/grpc-gateway

gRPC to JSON proxy generator following the gRPC HTTP spec · Go · 77 source files

Analyzed at a58a4436a3 on 2026-09-02. 106 documented errors.

Code / Message	Type	Severity	Tags
%s: %w	exception	error	json, parsing, openapi, go
encountered object type with a summary, but no description	validation	error	openapi, reflection, code-generation, proto-comments
: components	exception	error	json, openapi, type-mismatch, parsing
failed to lookup message type	exception	error	codegen, proto-registry, grpc-gateway, descriptor-lookup
JSON structure did not match request type	http	error	grpc-gateway, fieldmask, json, http-handler
can't map OpenAPI name from FQMN	exception	error	codegen, openapi, name-resolution, fqmn
HTTP rules without a matching selector	validation	error	codegen, http-rules, grpc-gateway, selector-mismatch
: openapi	exception	error	json, openapi, type-mismatch, parsing
can't resolve OpenAPI name from	exception	error	codegen, openapi, name-resolution, fqmn
%s: %q: %w	exception	error	json, parsing, openapi, go
exceeded recursive count	exception	error	codegen, openapi, recursion, cycle-detection
no description nor summary property	validation	error	openapi, reflection, code-generation, proto-comments
only primitive and well-known types are allowed in path…	validation	error	openapi, protobuf, path-parameters, code-generation
unsupported type	exception	error	codegen, openapi, map-keys, query-parameters
no target service defined in the file	error_code	info	protobuf, code-generation, grpc, sentinel-error
failed to encode OpenAPI for	exception	error	codegen, openapi, serialization, merge-mode
unable to marshal non proto field	http	error	grpc-gateway, marshalling, protobuf, http-handler
tags[ ]	exception	error	go, json, openapi, merge-conflict
: expected JSON object at top level	exception	error	json, validation, openapi, go
: unexpected token	exception	error	json, structure, parsing, go
expected string key, got	exception	error	go, json, malformed-input
unexpected number of yaml nodes	validation	error	yaml, openapi, serialization, code-generation
security	exception	error	go, json, openapi, serialization
: paths	exception	error	json, openapi, type-mismatch, parsing
unsupported field type	exception	error
only primitive and enum types are allowed in repeated path…	validation	error	openapi, protobuf, path-parameters, code-generation
cannot use path parameter in client streaming	validation	error
unable to unmarshal non proto field	http	error	grpc-gateway, marshalling, protobuf, unmarshal
no enum found	validation	error	protobuf, registry, enum-lookup
no field found in	exception	error
: webhooks	exception	error	json, openapi, type-mismatch, parsing
expected JSON object, got	exception	error	go, json, openapi, malformed-input
. : is a protobuf message type. Protobuf message types…	exception	error
: security	exception	error	json, openapi, type-mismatch, parsing
: tags	exception	error	json, openapi, parsing
tags[ ]: redefines a tag with different metadata	validation	error	go, openapi, merge-conflict, duplicate-definition
.	exception	error	json, openapi, merge
not an aggregate type	exception	error
unsupported body field type	validation	error
the provided format is not a valid extension of the type	validation	error
no body field found	validation	error
invalid tag entry	exception	error	go, json, openapi, malformed-input
malformed security requirement spec for key	validation	error
unknown enum type	exception	error	codegen, openapi, enum-lookup, proto-registry
empty identifier	validation	error
failed to register option in	validation	error	config, options-registration, selector
invalid character in path segment	exception	error
the provided default value	validation	error
invalid hexdigit: %c(%U)	exception	error
components. .	exception	error	json, openapi, components
package name is already taken. Use another alias	exception	error	go, protobuf, codegen, naming-collision
invalid pattern	http	error	go, grpc-gateway, code-generation, pattern
expected but got	exception	error
invalid field access list for	exception	error
failed to resolve method FQN	panic	error
security: declares different requirements	validation	error	go, openapi, merge-conflict, security
unexpected token after segments	exception	error
unknown message type	exception	error	codegen, openapi, message-lookup, proto-registry
empty MIME type	validation	error	go, grpc-gateway, marshaler, mime-type
extension is %T; want an HttpRule	exception	error
failed to parse OpenAPI Configuration from YAML in	validation	error	schema-validation, protojson, config
read	exception	error	go, filesystem, cli, file-not-found
the provided header type	validation	error
invalid header parameter type: %+v	validation	error
selector in must specify a single service method without…	validation	error	go, grpc-gateway, config, selector, validation
openapi: declares but declares	validation	error	openapi, versioning, merge-conflict
unknown field type	exception	error
at least one input is required	validation	error
failed to read gRPC API Configuration description from	validation	error	filesystem, yaml-config, file-not-found
invalid character (%U) in identifier	exception	error
identifier starting with digit	exception	error
components. . : redefines an entry with a different value	validation	error	openapi, merge-conflict, components
additional_binding in additional_binding not allowed	exception	error
not match to the path pattern	http	info	go, grpc-gateway, routing, sentinel-error
unknown termType	exception	error
. : redefines an entry with a different value	validation	error	openapi, merge-conflict, paths
the provided default value	validation	error
segment neither wildcards, literal or variable	exception	error
extension keys need to start with "x	validation	error
no file found	exception	error	configuration, protobuf, options
duplicate annotation: method=	exception	error	http-routing, protobuf, annotation, duplicate
invalid segment in variable	exception	error
usage: openapiv3-merge FILE [FILE ...]	validation	error
failed to parse gRPC API Configuration from YAML in	validation	error	go, yaml, grpc-gateway, config
: missing required field "openapi	validation	error	openapi, validation, missing-field
unknown format:	validation	error
no field path	http	error	go, grpc-gateway, query, field-path
invalid field path component	exception	error
failed to read code generator request	validation	error	go, protoc, plugin, io
must not set request body when http method is DELETE except…	exception	error	http, annotation, protobuf, validation
expected EOF but got	exception	error
failed to read OpenAPI Configuration description from	validation	error	filesystem, yaml-config, file-not-found
invalid percent-encoding in	exception	error
no method found	exception	error	configuration, protobuf, options
no message found	exception	error	configuration, protobuf, options
no field found	exception	error	configuration, protobuf, options
unterminated variable segment	exception	error
no service found	exception	error	configuration, protobuf, options
must not set request body when http method is GET	exception	error	http, annotation, protobuf, validation
no message found	validation	error	protobuf, registry, message-lookup