hyperledger/fabric · error

received nil proposal response

Error message

received nil proposal response

What it means

Defensive nil check in QueryApproved (peer lifecycle chaincode queryapproved): ProcessProposal returned a nil response without an error, which is structurally invalid. The command aborts rather than dereferencing nil; the accompanying "received proposal response with nil response" covers the partially-nil case.

Source

Thrown at internal/peer/lifecycle/chaincode/queryapproved.go:129

	}

	proposal, err := a.createProposal()
	if err != nil {
		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 != "" {

View on GitHub (pinned to 2736b63f8f)

Solutions

1. Check gRPC connectivity and TLS configuration between CLI and peer
2. Retry the queryapproved command
3. Inspect peer logs for endorsement errors that produced the malformed reply

When it happens

Trigger: Thrown at internal/peer/lifecycle/chaincode/queryapproved.go:129 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/5cd06aaa7bd2505d. Report an issue: GitHub.