go-kratos/kratos · error

unknown field kind: %v

Error message

unknown field kind: %v

What it means

Error "unknown field kind: %v" thrown in go-kratos/kratos.

Source

Thrown at encoding/form/proto_decode.go:232

		return protoreflect.ValueOfFloat32(float32(v)), nil
	case protoreflect.DoubleKind:
		v, err := strconv.ParseFloat(value, 64) //nolint:mnd
		if err != nil {
			return protoreflect.Value{}, err
		}
		return protoreflect.ValueOfFloat64(v), nil
	case protoreflect.StringKind:
		return protoreflect.ValueOfString(value), nil
	case protoreflect.BytesKind:
		v, err := base64.StdEncoding.DecodeString(value)
		if err != nil {
			return protoreflect.Value{}, err
		}
		return protoreflect.ValueOfBytes(v), nil
	case protoreflect.MessageKind, protoreflect.GroupKind:
		return parseMessage(fd.Message(), value)
	default:
		panic(fmt.Sprintf("unknown field kind: %v", fd.Kind()))
	}
}

func parseMessage(md protoreflect.MessageDescriptor, value string) (protoreflect.Value, error) {
	var msg proto.Message
	switch md.FullName() {
	case "google.protobuf.Timestamp":
		if value == nullStr {
			break
		}
		t, err := time.ParseInLocation(time.RFC3339Nano, value, time.Local)
		if err != nil {
			return protoreflect.Value{}, err
		}
		msg = timestamppb.New(t)
	case "google.protobuf.Duration":
		if value == nullStr {
			break

View on GitHub (pinned to 668db92c2c)

When it happens

Trigger: Thrown at encoding/form/proto_decode.go:232 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of go-kratos/kratos@668db92c2c (2026-08-16). Data as JSON: /api/errors/13a74d7657b87d4c. Report an issue: GitHub.