{"record":{"id":"b56b1bf66ed8c329","repo":"ahmetb/kubectx","slug":"failed-to-reset-file-d-w","errorCode":null,"errorMessage":"failed to reset file %d: %w","messagePattern":"failed to reset file (.+?): %w","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/kubeconfig/kubeconfig.go","lineNumber":206,"sourceCode":"\t\t\tseen[n] = true\n\t\t\telements = append(elements, rn)\n\t\t}\n\t}\n\n\tif len(elements) == 0 {\n\t\treturn nil, nil\n\t}\n\tseqNode := &yaml.Node{Kind: yaml.SequenceNode, Tag: \"!!seq\"}\n\tfor _, elem := range elements {\n\t\tseqNode.Content = append(seqNode.Content, elem.YNode())\n\t}\n\treturn yaml.NewRNode(seqNode), nil\n}\n\nfunc (k *Kubeconfig) Save() error {\n\tfor i := range k.files {\n\t\tif err := k.files[i].f.Reset(); err != nil {\n\t\t\treturn fmt.Errorf(\"failed to reset file %d: %w\", i, err)\n\t\t}\n\t\tenc := yaml.NewEncoder(k.files[i].f)\n\t\tenc.SetIndent(0)\n\t\tif err := enc.Encode(k.files[i].config.YNode()); err != nil {\n\t\t\treturn fmt.Errorf(\"failed to encode file %d: %w\", i, err)\n\t\t}\n\t\tif err := enc.Close(); err != nil {\n\t\t\treturn fmt.Errorf(\"failed to close encoder for file %d: %w\", i, err)\n\t\t}\n\t}\n\treturn nil\n}\n","sourceCodeStart":188,"sourceCodeEnd":219,"githubUrl":"https://github.com/ahmetb/kubectx/blob/12ad6fb22e8c546ee2b54e7de38aa51c906832f7/internal/kubeconfig/kubeconfig.go#L188-L219","documentation":"In the per-file Save loop, Reset() (truncate/reposition the backing file) failed for file i. Fires when the write handle cannot truncate: read-only file, permission changed since parse, or a non-regular backing file. No files have been re-encoded yet at this point in that iteration.","triggerScenarios":"Thrown at internal/kubeconfig/kubeconfig.go:206 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Check write permission on the N-th KUBECONFIG file","Remove read-only flags/immutable attributes","Ensure the file is a regular writable file, then retry the switch"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"12ad6fb22e8c546ee2b54e7de38aa51c906832f7","analyzedAt":"2026-09-02T12:23:10.107Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-09T16:17:10.729Z"}