{"record":{"id":"d24fe97f553bde99","repo":"hyperledger/fabric","slug":"the-required-parameter-channelid-is-empty-rerun-d24fe9","errorCode":null,"errorMessage":"The required parameter 'channelID' is empty. Rerun the command with -C flag","messagePattern":"The required parameter 'channelID' is empty\\. Rerun the command with -C flag","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/peer/lifecycle/chaincode/checkcommitreadiness.go","lineNumber":66,"sourceCode":"\tName                     string\n\tVersion                  string\n\tPackageID                string\n\tSequence                 int64\n\tEndorsementPlugin        string\n\tValidationPlugin         string\n\tValidationParameterBytes []byte\n\tCollectionConfigPackage  *pb.CollectionConfigPackage\n\tInitRequired             bool\n\tPeerAddresses            []string\n\tTxID                     string\n\tOutputFormat             string\n\tInspectionEnabled        bool\n}\n\n// Validate the input for a CheckCommitReadiness proposal\nfunc (c *CommitReadinessCheckInput) Validate() error {\n\tif c.ChannelID == \"\" {\n\t\treturn errors.New(\"The required parameter 'channelID' is empty. Rerun the command with -C flag\")\n\t}\n\n\tif c.Name == \"\" {\n\t\treturn errors.New(\"The required parameter 'name' is empty. Rerun the command with -n flag\")\n\t}\n\n\tif c.Version == \"\" {\n\t\treturn errors.New(\"The required parameter 'version' is empty. Rerun the command with -v flag\")\n\t}\n\n\tif c.Sequence == 0 {\n\t\treturn errors.New(\"The required parameter 'sequence' is empty. Rerun the command with --sequence flag\")\n\t}\n\n\treturn nil\n}\n\n// CheckCommitReadinessCmd returns the cobra command for the","sourceCodeStart":48,"sourceCodeEnd":84,"githubUrl":"https://github.com/hyperledger/fabric/blob/2736b63f8fd5932511d56fe68b7039d15977f7f6/internal/peer/lifecycle/chaincode/checkcommitreadiness.go#L48-L84","documentation":"CommitReadinessCheckInput.Validate requires ChannelID; the checkcommitreadiness command evaluates approval state per channel, so without -C/--channelID there is no channel to query. The error explicitly instructs the user to rerun with the -C flag. Raised before any proposal is sent to the peer.","triggerScenarios":"Running `peer lifecycle chaincode checkcommitreadiness` without --channelID/-C, or programmatically leaving CheckCommitReadinessInput.ChannelID as \"\" while calling Validate() via ReadinessCheck.","commonSituations":"Scripts parameterized over multiple channels where the channel variable is unset/empty; reusing command templates from other lifecycle subcommands where the flag was optional; env-driven automation losing the CHANNEL_NAME variable.","solutions":["Rerun with the channel flag: `peer lifecycle chaincode checkcommitreadiness --channelID mychannel --name mycc --version 1.0 --sequence 1`.","In Go, set Input.ChannelID before calling Validate()/ReadinessCheck.","In automation, validate that the channel variable is non-empty before invoking the command."],"exampleFix":"// before\npeer lifecycle chaincode checkcommitreadiness --name mycc --version 1.0 --sequence 1\n// after\npeer lifecycle chaincode checkcommitreadiness --channelID mychannel --name mycc --version 1.0 --sequence 1","handlingStrategy":"validation","validationCode":"input := chaincode.CheckCommitReadinessInput{}\nif input.ChannelID == \"\" {\n    return errors.New(\"-C/--channelID is required for checkcommitreadiness\")\n}\nif err := input.Validate(); err != nil {\n    return err\n}","typeGuard":null,"tryCatchPattern":"_, err := readinessCheck.ReadinessCheck(input)\nif err != nil && strings.Contains(err.Error(), \"channelID\") {\n    return fmt.Errorf(\"supply channel via -C flag: %w\", err)\n}","preventionTips":["Standardize on passing -C explicitly in every lifecycle command, even when env defaults exist.","In multi-channel automation, assert the channel variable is non-empty before invoking.","Consider setting FABRIC_CFG_PATH/channel defaults only as a fallback, never the primary mechanism."],"tags":["fabric","cli-input-validation","missing-parameter"],"backgroundTag":"missing-required-argument","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"}