{"record":{"id":"7d6097d915832729","repo":"hyperledger/fabric","slug":"the-required-parameter-channelid-is-empty-rerun-7d6097","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/queryapproved.go","lineNumber":205,"sourceCode":"\tGetSource() *lb.ChaincodeSource\n}\n\nfunc (a *ApprovedQuerier) printSingleApprovedChaincodeDefinition(acd ApprovedChaincodeDefinition) {\n\tvar packageID string\n\tif acd.GetSource() != nil {\n\t\tswitch source := acd.GetSource().Type.(type) {\n\t\tcase *lb.ChaincodeSource_LocalPackage:\n\t\t\tpackageID = source.LocalPackage.PackageId\n\t\tcase *lb.ChaincodeSource_Unavailable_:\n\t\t}\n\t}\n\tfmt.Fprintf(a.Writer, \"sequence: %d, version: %s, init-required: %t, package-id: %s, endorsement plugin: %s, validation plugin: %s\",\n\t\tacd.GetSequence(), acd.GetVersion(), acd.GetInitRequired(), packageID, acd.GetEndorsementPlugin(), acd.GetValidationPlugin())\n}\n\nfunc (a *ApprovedQuerier) validateInput() error {\n\tif a.Input.ChannelID == \"\" {\n\t\treturn errors.New(\"The required parameter 'channelID' is empty. Rerun the command with -C flag\")\n\t}\n\tif a.Input.Name == \"\" && a.Input.Sequence != 0 {\n\t\treturn errors.New(\"Specifying parameter 'sequence' is invalid without parameter 'name'. Rerun the command with -n flag\")\n\t}\n\n\treturn nil\n}\n\nfunc (a *ApprovedQuerier) createProposal() (*pb.Proposal, error) {\n\tvar function string\n\tvar args proto.Message\n\n\tif a.Input.Name != \"\" {\n\t\tfunction = \"QueryApprovedChaincodeDefinition\"\n\t\targs = &lb.QueryApprovedChaincodeDefinitionArgs{\n\t\t\tName:     a.Input.Name,\n\t\t\tSequence: a.Input.Sequence,\n\t\t}","sourceCodeStart":187,"sourceCodeEnd":223,"githubUrl":"https://github.com/hyperledger/fabric/blob/2736b63f8fd5932511d56fe68b7039d15977f7f6/internal/peer/lifecycle/chaincode/queryapproved.go#L187-L223","documentation":"ApprovedQuerier.validateInput rejects the command when Input.ChannelID is empty. The query is channel-scoped, so without a channel the peer cannot resolve approved chaincode definitions. The message tells the user to re-run with the -C flag.","triggerScenarios":"Running `peer lifecycle chaincode queryapproved` (or calling QueryApproved.Query) without specifying ChannelID / -C flag.","commonSituations":"Scripting the CLI and omitting the -C flag, environment variables/config providing only the chaincode name, or programmatically constructing the Input struct and forgetting to set ChannelID.","solutions":["Re-run the command with the -C (or --channelID) flag, e.g. `peer lifecycle chaincode queryapproved -C mychannel`","When using the Go client, set Input.ChannelID before calling Query","Add a shell/config check that supplies the channel name from your deployment configuration"],"exampleFix":"// before\npeer lifecycle chaincode queryapproved -n mycc\n// after\npeer lifecycle chaincode queryapproved -C mychannel -n mycc","handlingStrategy":"validation","validationCode":"if channelID == \"\" {\n\treturn errors.New(\"The required parameter 'channelID' is empty. Rerun the command with -C flag\")\n}","typeGuard":null,"tryCatchPattern":"if err := q.Query(); err != nil {\n\tif strings.Contains(err.Error(), \"channelID\") {\n\t\tfmt.Fprintln(os.Stderr, \"Usage: add -C <channelID>\")\n\t}\n\treturn err\n}","preventionTips":["Always pass -C <channel> on queryapproved commands","Set Input.ChannelID in client code before invoking Query","Source the channel name from a shared deployment config/env var in scripts","Validate CLI flags in wrapper scripts before invoking the peer binary"],"tags":["hyperledger-fabric","cli","input-validation","channel"],"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"}