{"record":{"id":"9d5792f38f04fdcc","repo":"hyperledger/fabric","slug":"no-channel-configuration-groups-are-available-9d5792","errorCode":null,"errorMessage":"No channel configuration groups are available","messagePattern":"No channel configuration groups are available","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"core/scc/cscc/configure.go","lineNumber":237,"sourceCode":"\t\treturn errors.Errorf(\"Failed to %s\", err)\n\t}\n\n\tconfigEnv := &common.ConfigEnvelope{}\n\t_, err = protoutil.UnmarshalEnvelopeOfType(envelopeConfig, common.HeaderType_CONFIG, configEnv)\n\tif err != nil {\n\t\treturn errors.Errorf(\"Bad configuration envelope: %s\", err)\n\t}\n\n\tif configEnv.Config == nil {\n\t\treturn errors.New(\"Nil config envelope Config\")\n\t}\n\n\tif configEnv.Config.ChannelGroup == nil {\n\t\treturn errors.New(\"Nil channel group\")\n\t}\n\n\tif configEnv.Config.ChannelGroup.Groups == nil {\n\t\treturn errors.New(\"No channel configuration groups are available\")\n\t}\n\n\t_, exists := configEnv.Config.ChannelGroup.Groups[channelconfig.ApplicationGroupKey]\n\tif !exists {\n\t\treturn errors.Errorf(\"Invalid configuration block, missing %s \"+\n\t\t\t\"configuration group\", channelconfig.ApplicationGroupKey)\n\t}\n\n\t// Check the capabilities requirement\n\tif err = channelconfig.ValidateCapabilities(block, bccsp); err != nil {\n\t\treturn errors.Errorf(\"Failed capabilities check: [%s]\", err)\n\t}\n\n\treturn nil\n}\n\n// joinChain will join the specified chain in the configuration block.\n// Since it is the first block, it is the genesis block containing configuration","sourceCodeStart":219,"sourceCodeEnd":255,"githubUrl":"https://github.com/hyperledger/fabric/blob/2736b63f8fd5932511d56fe68b7039d15977f7f6/core/scc/cscc/configure.go#L219-L255","documentation":"The ConfigEnvelope has a ChannelGroup, but its Groups map is nil — meaning the top-level channel configuration contains no named sub-groups (Orderer, Application, Consortiums) at all. cscc requires a structured configuration tree and cannot validate a channel with zero configuration groups.","triggerScenarios":"Submitting a ChannelGroup with no Groups map populated; a configtxgen profile that emitted a channel with no organizations/policies; truncation of the config tree when converting via configtxlator; passing a ChannelGroup that was created empty for later mutation but submitted as-is.","commonSituations":"Empty or mis-generated genesis blocks; channel-creation tools that build the group hierarchy incrementally and submit before populating; test harnesses submitting placeholder configs; fabric-samples config updates that accidentally removed all groups.","solutions":["Regenerate the channel config from a complete configtx.yaml profile with at least Orderer and Application sections","Inspect the submitted config with `configtxlator proto_decode --type common.ConfigEnvelope` and confirm Groups contains Orderer/Application","If mutating an existing config, base the update on the current channel config (`fetch config` via peer channel fetch config) instead of an empty ChannelGroup","Add the missing organizations to the profile so groups are emitted"],"exampleFix":"// before\nchannelGroup := &common.ConfigGroup{} // Groups left nil\n// after\nchannelGroup := &common.ConfigGroup{\n    Groups: map[string]*common.ConfigGroup{\n        channelconfig.ApplicationGroupKey: appGroup,\n        channelconfig.OrdererGroupKey:     ordererGroup,\n    },\n}","handlingStrategy":"validation","validationCode":"if cg := cfg.GetChannelGroup(); cg == nil || cg.GetGroups() == nil {\n    return errors.New(\"no channel configuration groups present\")\n}","typeGuard":"func hasConfigGroups(cfg *common.Config) bool {\n    return cfg != nil && cfg.ChannelGroup != nil && len(cfg.ChannelGroup.Groups) > 0\n}","tryCatchPattern":"if len(cfg.GetChannelGroup().GetGroups()) == 0 {\n    return fmt.Errorf(\"empty group tree: rebuild config from a complete profile\")\n}","preventionTips":["Ensure profiles define Orderer and Application sections","Derive updates from the current channel config rather than building trees from scratch","Use configtxlator proto_decode to inspect the group map before submitting","Add a pre-submission check that all expected group keys exist"],"tags":["fabric","system-chaincode","channel-config","missing-groups"],"backgroundTag":"malformed-config-envelope","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"}