hyperledger/fabric · error

received proposal response with nil response

Error message

received proposal response with nil response

What it means

The endorser peer returned a ProposalResponse message but its inner Response field was nil, so there is no payload/status to inspect. This indicates a malformed or truncated response from the endorsing peer rather than a transport error (ProcessProposal itself succeeded).

Source

Thrown at internal/peer/lifecycle/chaincode/queryapproved.go:133

		return errors.WithMessage(err, "failed to create proposal")
	}

	signedProposal, err := signProposal(proposal, a.Signer)
	if err != nil {
		return errors.WithMessage(err, "failed to create signed proposal")
	}

	proposalResponse, err := a.EndorserClient.ProcessProposal(context.Background(), signedProposal)
	if err != nil {
		return errors.WithMessage(err, "failed to endorse proposal")
	}

	if proposalResponse == nil {
		return errors.New("received nil proposal response")
	}

	if proposalResponse.Response == nil {
		return errors.New("received proposal response with nil response")
	}

	if proposalResponse.Response.Status != int32(cb.Status_SUCCESS) {
		return errors.Errorf("query failed with status: %d - %s", proposalResponse.Response.Status, proposalResponse.Response.Message)
	}

	if strings.ToLower(a.Input.OutputFormat) == "json" {
		return a.printResponseAsJSON(proposalResponse)
	}
	return a.printResponse(proposalResponse)
}

func (a *ApprovedQuerier) printResponseAsJSON(proposalResponse *pb.ProposalResponse) error {
	if a.Input.Name != "" {
		return printResponseAsJSON(proposalResponse, &lb.QueryApprovedChaincodeDefinitionResult{}, a.Writer)
	}
	return printResponseAsJSON(proposalResponse, &lb.QueryApprovedChaincodeDefinitionsResult{}, a.Writer)
}

View on GitHub (pinned to 2736b63f8f)

Solutions

1. Check peer logs for the endorsing peer that produced the malformed response
2. Retry the query against a different endorsing peer or after the peer restarts
3. Verify peer and client Fabric versions are compatible

When it happens

Trigger: Thrown at internal/peer/lifecycle/chaincode/queryapproved.go:133 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of hyperledger/fabric@2736b63f8f (2026-09-04). Data as JSON: /api/errors/9564a3880fa500a1. Report an issue: GitHub.