{"record":{"id":"76087a1ddde9f8f5","repo":"hyperledger/fabric","slug":"error-marshaling-envelope","errorCode":null,"errorMessage":"error marshaling Envelope","messagePattern":"error marshaling Envelope","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"protoutil/proputils.go","lineNumber":222,"sourceCode":"\treturn bytes, errors.Wrap(err, \"error unmarshalling Transaction\")\n}\n\n// GetBytesPayload get the bytes of Payload from the message\nfunc GetBytesPayload(payl *common.Payload) ([]byte, error) {\n\tif payl == nil {\n\t\treturn nil, errors.New(\"error marshaling Payload: proto: Marshal called with nil\")\n\t}\n\tbytes, err := proto.Marshal(payl)\n\treturn bytes, errors.Wrap(err, \"error marshaling Payload\")\n}\n\n// GetBytesEnvelope get the bytes of Envelope from the message\nfunc GetBytesEnvelope(env *common.Envelope) ([]byte, error) {\n\tif env == nil {\n\t\treturn nil, errors.New(\"error marshaling Envelope: proto: Marshal called with nil\")\n\t}\n\tbytes, err := proto.Marshal(env)\n\treturn bytes, errors.Wrap(err, \"error marshaling Envelope\")\n}\n\n// GetActionFromEnvelope extracts a ChaincodeAction message from a\n// serialized Envelope\n// TODO: fix function name as per FAB-11831\nfunc GetActionFromEnvelope(envBytes []byte) (*peer.ChaincodeAction, error) {\n\tenv, err := GetEnvelopeFromBlock(envBytes)\n\tif err != nil {\n\t\treturn nil, err\n\t}\n\treturn GetActionFromEnvelopeMsg(env)\n}\n\nfunc GetActionFromEnvelopeMsg(env *common.Envelope) (*peer.ChaincodeAction, error) {\n\tpayl, err := UnmarshalPayload(env.Payload)\n\tif err != nil {\n\t\treturn nil, err\n\t}","sourceCodeStart":204,"sourceCodeEnd":240,"githubUrl":"https://github.com/hyperledger/fabric/blob/2736b63f8fd5932511d56fe68b7039d15977f7f6/protoutil/proputils.go#L204-L240","documentation":"Wrapper error from GetBytesEnvelope: proto.Marshal(env) failed while serializing the *common.Envelope. The underlying cause is attached by errors.Wrap and is most often the nil-message marshal failure. It prevents submitting transactions to the ordering service.","triggerScenarios":"proto.Marshal failing on an Envelope in GetBytesEnvelope, reached from TestInvoke and the deploy/invoke validation tests when an unsigned or nil envelope is passed.","commonSituations":"Test harnesses and CLI-like flows assembling envelopes from proposals where the signature step failed silently or the payload bytes were nil.","solutions":["Inspect the wrapped cause to distinguish nil-envelope from genuine marshal failure","Confirm the envelope Payload bytes were produced by GetBytesPayload without error and a signature was set","Add nil/empty checks before serialization in the calling test or SDK path"],"exampleFix":"// before\nbytes, err := proto.Marshal(env)\nreturn bytes, errors.Wrap(err, \"error marshaling Envelope\")\n// after\nif env == nil {\n\treturn nil, errors.New(\"nil Envelope\")\n}\nbytes, err := proto.Marshal(env)\nreturn bytes, errors.Wrap(err, \"error marshaling Envelope\")","handlingStrategy":"try-catch","validationCode":"if env == nil || len(env.Payload) == 0 {\n\treturn errors.New(\"envelope nil or payload empty\")\n}","typeGuard":"func hasEnvelopeBytes(env *common.Envelope) bool {\n\treturn env != nil && len(env.Payload) > 0\n}","tryCatchPattern":"bytes, err := protoutil.GetBytesEnvelope(env)\nif err != nil {\n\treturn nil, fmt.Errorf(\"GetBytesEnvelope: %w (cause: %v)\", err, errors.Unwrap(err))\n}","preventionTips":["Verify payload bytes exist and signature was set before marshaling the envelope","Log unwrapped causes to distinguish nil-message vs real marshal failures","Keep test harnesses asserting on envelope construction errors"],"tags":["hyperledger-fabric","protobuf","serialization","wrapped-error"],"backgroundTag":"proto-marshal-nil-message","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"}