{"record":{"id":"3c2a06f358fa2fb7","repo":"hyperledger/fabric","slug":"error-writing-channel-create-tx-s","errorCode":null,"errorMessage":"error writing channel create tx: %s","messagePattern":"error writing channel create tx: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"cmd/configtxgen/main.go","lineNumber":74,"sourceCode":"\nfunc doOutputChannelCreateTx(conf, baseProfile *genesisconfig.Profile, channelID string, outputChannelCreateTx string) error {\n\tlogger.Info(\"Generating new channel configtx\")\n\n\tvar configtx *cb.Envelope\n\tvar err error\n\tif baseProfile == nil {\n\t\tconfigtx, err = encoder.MakeChannelCreationTransaction(channelID, nil, conf)\n\t} else {\n\t\tconfigtx, err = encoder.MakeChannelCreationTransactionWithSystemChannelContext(channelID, nil, conf, baseProfile)\n\t}\n\tif err != nil {\n\t\treturn err\n\t}\n\n\tlogger.Info(\"Writing new channel tx\")\n\terr = writeFile(outputChannelCreateTx, protoutil.MarshalOrPanic(configtx), 0o640)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"error writing channel create tx: %s\", err)\n\t}\n\treturn nil\n}\n\nfunc doInspectBlock(inspectBlock string) error {\n\tlogger.Info(\"Inspecting block\")\n\tdata, err := os.ReadFile(inspectBlock)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"could not read block %s\", inspectBlock)\n\t}\n\n\tlogger.Info(\"Parsing genesis block\")\n\tblock, err := protoutil.UnmarshalBlock(data)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"error unmarshalling to block: %s\", err)\n\t}\n\terr = protolator.DeepMarshalJSON(os.Stdout, block)\n\tif err != nil {","sourceCodeStart":56,"sourceCodeEnd":92,"githubUrl":"https://github.com/hyperledger/fabric/blob/2736b63f8fd5932511d56fe68b7039d15977f7f6/cmd/configtxgen/main.go#L56-L92","documentation":"Returned by doOutputChannelCreateTx when writeFile fails to write the marshaled channel-creation transaction envelope to the specified output file. The configtx was generated correctly; the error comes from the file write itself (bad path, permissions, I/O failure).","triggerScenarios":"Thrown at cmd/configtxgen/main.go:74 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Verify the output path is writable and its parent directory exists","Inspect the wrapped error for the actual OS-level cause (permission, ENOSPC, read-only FS)"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"2736b63f8fd5932511d56fe68b7039d15977f7f6","analyzedAt":"2026-09-04T08:52:36.465Z","contentChangedAt":"2026-09-04T08:52:36.465Z","schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}