{"record":{"id":"1767f401a2227ebf","repo":"hyperledger/fabric","slug":"the-required-parameter-channelid-is-empty-rerun-1767f4","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/snapshot/submitrequest.go","lineNumber":84,"sourceCode":"\t\tBlockNumber:     blockNumber,\n\t}\n\tsignedRequest, err := signSnapshotRequest(cl.signer, request)\n\tif err != nil {\n\t\treturn err\n\t}\n\n\t_, err = cl.snapshotClient.Generate(context.Background(), signedRequest)\n\tif err != nil {\n\t\treturn errors.WithMessage(err, \"failed to submit the request\")\n\t}\n\n\tfmt.Fprint(cl.writer, \"Snapshot request submitted successfully\\n\")\n\treturn nil\n}\n\nfunc validateSubmitRequest() error {\n\tif channelID == \"\" {\n\t\treturn errors.New(\"the required parameter 'channelID' is empty. Rerun the command with -c flag\")\n\t}\n\treturn nil\n}\n","sourceCodeStart":66,"sourceCodeEnd":88,"githubUrl":"https://github.com/hyperledger/fabric/blob/2736b63f8fd5932511d56fe68b7039d15977f7f6/internal/peer/snapshot/submitrequest.go#L66-L88","documentation":"The peer snapshot submitrequest command requires a target channel via -c/--channelID before it can submit a snapshot request to the peer. validateSubmitRequest returns this error when channelID is empty, aborting submission.","triggerScenarios":"Running 'peer snapshot submitrequest' without -c/--channelID or with an empty value, typically alongside -b <blockNumber>.","commonSituations":"Scripts with an unset channel variable; retyping the command manually and forgetting the required flag; examples copied from non-snapshot peer commands where -c was optional.","solutions":["Rerun with: peer snapshot submitrequest -c <channelID> -b <blockNumber>.","Check the snapshot subcommand help (peer snapshot submitrequest --help) for required flags.","Guard channel variables in automation before invoking."],"exampleFix":"// before\npeer snapshot submitrequest -b 1500\n// after\npeer snapshot submitrequest -c mychannel -b 1500","handlingStrategy":"validation","validationCode":"if [ -z \"$CHANNEL\" ] || [ -z \"$BLOCK\" ]; then\n  echo \"usage: peer snapshot submitrequest -c <channelID> -b <blockNumber>\"; exit 1\nfi\npeer snapshot submitrequest -c \"$CHANNEL\" -b \"$BLOCK\"","typeGuard":null,"tryCatchPattern":null,"preventionTips":["Always pass -c with -b for submitrequest","Validate required env vars at script start","Consult snapshot --help for the full flag list"],"tags":["cli","snapshot","missing-flag","fabric"],"backgroundTag":"missing-required-flag","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"}