{"record":{"id":"2ee0cecdaf6376a4","repo":"kubernetes/kops","slug":"field-s-is-not-known","errorCode":null,"errorMessage":"field %s is not known","messagePattern":"field (.+?) is not known","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"util/pkg/reflectutils/set_fields.go","lineNumber":50,"sourceCode":"\tvalType := val.Type()\n\n\tfieldsByJsonName := make(map[string]reflect.StructField)\n\n\tfor i := 0; i < val.NumField(); i++ {\n\t\tfd := valType.Field(i)\n\t\tjsonName := fd.Tag.Get(\"json\")\n\t\tif jsonName == \"\" || jsonName == \"-\" {\n\t\t\tcontinue\n\t\t}\n\t\tjsonName = strings.TrimSuffix(jsonName, \",omitempty\")\n\t\tfieldsByJsonName[jsonName] = fd\n\t}\n\n\tsetFields := sets.New[string]()\n\tfor _, field := range fields {\n\t\tfd, ok := fieldsByJsonName[field]\n\t\tif !ok {\n\t\t\treturn nil, fmt.Errorf(\"field %s is not known\", field)\n\t\t}\n\n\t\tfieldVal := val.FieldByIndex(fd.Index)\n\t\tswitch fieldVal.Kind() {\n\t\tcase reflect.Ptr:\n\t\t\tif !fieldVal.IsNil() {\n\t\t\t\tsetFields.Insert(field)\n\t\t\t}\n\t\tdefault:\n\t\t\treturn nil, fmt.Errorf(\"field %s is not a pointer\", fd.Name)\n\t\t}\n\n\t}\n\n\treturn setFields, nil\n}\n","sourceCodeStart":32,"sourceCodeEnd":67,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/util/pkg/reflectutils/set_fields.go#L32-L67","documentation":"Error \"field %s is not known\" thrown in kubernetes/kops.","triggerScenarios":"Thrown at util/pkg/reflectutils/set_fields.go:50 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"4c8573c808a73d578c5eadc86d410646ea0b0d73","analyzedAt":"2026-09-05T04:13:19.212Z","contentChangedAt":"2026-09-05T04:13:19.212Z","schemaVersion":2},"datasetVersion":"2026-09-12T07:17:12.445Z"}