{"record":{"id":"0f7a84920279169c","repo":"hyperledger/fabric","slug":"wrong-number-of-arguments-for-invocation-lscc-s-0f7a84","errorCode":null,"errorMessage":"Wrong number of arguments for invocation lscc(%s): received %d","messagePattern":"Wrong number of arguments for invocation lscc\\((.+?)\\): received (.+?)","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"core/handlers/validation/builtin/v13/lscc_validation_logic.go","lineNumber":381,"sourceCode":"\t\treturn policyErr(fmt.Errorf(\"malformed chaincode invocation spec\"))\n\t}\n\n\tlsccFunc := string(cis.ChaincodeSpec.Input.Args[0])\n\tlsccArgs := cis.ChaincodeSpec.Input.Args[1:]\n\n\tlogger.Debugf(\"VSCC info: ValidateLSCCInvocation acting on %s %#v\", lsccFunc, lsccArgs)\n\n\tswitch lsccFunc {\n\tcase lscc.UPGRADE, lscc.DEPLOY:\n\t\tlogger.Debugf(\"VSCC info: validating invocation of lscc function %s on arguments %#v\", lsccFunc, lsccArgs)\n\n\t\tif len(lsccArgs) < 2 {\n\t\t\treturn policyErr(fmt.Errorf(\"Wrong number of arguments for invocation lscc(%s): expected at least 2, received %d\", lsccFunc, len(lsccArgs)))\n\t\t}\n\n\t\tif (!ac.PrivateChannelData() && len(lsccArgs) > 5) ||\n\t\t\t(ac.PrivateChannelData() && len(lsccArgs) > 6) {\n\t\t\treturn policyErr(fmt.Errorf(\"Wrong number of arguments for invocation lscc(%s): received %d\", lsccFunc, len(lsccArgs)))\n\t\t}\n\n\t\tcdsArgs, err := protoutil.UnmarshalChaincodeDeploymentSpec(lsccArgs[1])\n\t\tif err != nil {\n\t\t\treturn policyErr(fmt.Errorf(\"GetChaincodeDeploymentSpec error %s\", err))\n\t\t}\n\n\t\tif cdsArgs == nil || cdsArgs.ChaincodeSpec == nil || cdsArgs.ChaincodeSpec.ChaincodeId == nil ||\n\t\t\tcap.Action == nil || cap.Action.ProposalResponsePayload == nil {\n\t\t\treturn policyErr(fmt.Errorf(\"VSCC error: invocation of lscc(%s) does not have appropriate arguments\", lsccFunc))\n\t\t}\n\n\t\tswitch cdsArgs.ChaincodeSpec.Type.String() {\n\t\tcase \"GOLANG\", \"NODE\", \"JAVA\", \"CAR\":\n\t\tdefault:\n\t\t\treturn policyErr(fmt.Errorf(\"unexpected chaincode spec type: %s\", cdsArgs.ChaincodeSpec.Type.String()))\n\t\t}\n","sourceCodeStart":363,"sourceCodeEnd":399,"githubUrl":"https://github.com/hyperledger/fabric/blob/2736b63f8fd5932511d56fe68b7039d15977f7f6/core/handlers/validation/builtin/v13/lscc_validation_logic.go#L363-L399","documentation":"Returned by ValidateLSCCInvocation for deploy/upgrade when fewer than 2 lscc arguments are supplied — the function plus at least name/spec are mandatory. This record is the too-many/scope variant companion: the shown guard is the <2 check; the message here fires for argument-count violations of the expected lscc arg envelope.","triggerScenarios":"Thrown at core/handlers/validation/builtin/v13/lscc_validation_logic.go:381 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Trim LSCC args to the supported arity","Verify the client targets the correct LSCC function andFabric version"],"exampleFix":null,"handlingStrategy":"validation","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"}