{"record":{"id":"8437156c24161152","repo":"kubernetes/kops","slug":"cannot-interpret-q-value-as-unsigned-integer","errorCode":null,"errorMessage":"cannot interpret %q value as unsigned integer","messagePattern":"cannot interpret %q value as unsigned integer","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"util/pkg/reflectutils/access.go","lineNumber":236,"sourceCode":"\t\t\t\treturn fmt.Errorf(\"cannot interpret %q value as int32\", newValue)\n\t\t\t}\n\t\t\tv32 := int32(v)\n\t\t\tnewV = reflect.ValueOf(v32)\n\t\tcase \"int64\":\n\t\t\tv, err := strconv.ParseInt(newValue, 10, 64)\n\t\t\tif err != nil {\n\t\t\t\treturn fmt.Errorf(\"cannot interpret %q value as int64\", newValue)\n\t\t\t}\n\t\t\tv64 := int64(v)\n\t\t\tnewV = reflect.ValueOf(v64)\n\t\tdefault:\n\t\t\tpanic(\"missing case in int switch\")\n\t\t}\n\n\tcase \"uint64\", \"uint32\", \"uint16\", \"uint\":\n\t\tv, err := strconv.Atoi(newValue)\n\t\tif err != nil {\n\t\t\treturn fmt.Errorf(\"cannot interpret %q value as unsigned integer\", newValue)\n\t\t}\n\n\t\tswitch t {\n\t\tcase \"uint\":\n\t\t\tnewV = reflect.ValueOf(v)\n\t\tcase \"uint16\":\n\t\t\tv16 := uint16(v)\n\t\t\tnewV = reflect.ValueOf(v16)\n\t\tcase \"uint32\":\n\t\t\tv32 := uint32(v)\n\t\t\tnewV = reflect.ValueOf(v32)\n\t\tcase \"uint64\":\n\t\t\tv64 := uint64(v)\n\t\t\tnewV = reflect.ValueOf(v64)\n\t\tdefault:\n\t\t\tpanic(\"missing case in uint switch\")\n\t\t}\n","sourceCodeStart":218,"sourceCodeEnd":254,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/util/pkg/reflectutils/access.go#L218-L254","documentation":"reflectutils.setType converts a string value into the Go type of the target struct field. When the field's type tag is an unsigned integer kind (uint, uint16, uint32, uint64) but strconv.Atoi cannot parse the string as an integer, it returns this error instead of panicking. It indicates the value supplied (e.g. via kops set / cluster spec mutation) is not a valid unsigned integer.","triggerScenarios":"Calling kops set with a field path targeting a uint-typed field and passing a non-numeric string, e.g. `kops set cluster spec.kubelet.nodeStatusMaxWorkers=many` or `kops set instancegroup ... spec.maxSize=abc`.","commonSituations":"Typos or pasted values with units ('2GB', '300m'), empty strings from templating/variable substitution, or accidentally setting an instance-group maxSize/maxCount to a name instead of a number.","solutions":["Pass a plain base-10 integer without units or quotes, e.g. `--set spec.maxSize=3`","Check the target field's type in the API docs to confirm it is an integer field","If a quantity with units is intended, use the matching string-form field (e.g. memory quantities are resource.Quantity, not uint)","Fix template/variable substitution so the value is not empty at set time"],"exampleFix":"// before\nkops set cluster spec.kubelet.nodeStatusMaxWorkers=high\n// after\nkops set cluster spec.kubelet.nodeStatusMaxWorkers=150","handlingStrategy":"validation","validationCode":"v := os.Args[valueIdx]\nif _, err := strconv.ParseUint(v, 10, 64); err != nil {\n\treturn fmt.Errorf(\"%q is not a valid unsigned integer\", v)\n}","typeGuard":"func isUint(s string) bool { _, err := strconv.ParseUint(s, 10, 64); return err == nil }","tryCatchPattern":null,"preventionTips":["Pass bare integers without units or quotes to kops set for uint fields","Confirm field types in the kOps API reference before setting"],"tags":["reflection","value-parsing","go"],"backgroundTag":"invalid-numeric-value","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"}