hyperledger/fabric · error

received proposal response with nil response

Error message

received proposal response with nil response

What it means

Defensive check in Approve: the proposal response is non-nil but its embedded Response field is nil, so its status/message cannot be inspected. This is a structurally invalid endorser reply; the command aborts rather than misreporting the endorsement outcome.

Source

Thrown at internal/peer/lifecycle/chaincode/approveformyorg.go:198

		}
		responses = append(responses, proposalResponse)
	}

	if len(responses) == 0 {
		// this should only be empty due to a programming bug
		return errors.New("no proposal responses received")
	}

	// all responses will be checked when the signed transaction is created.
	// for now, just set this so we check the first response's status
	proposalResponse := responses[0]

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

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

	if proposalResponse.Response.Status != int32(cb.Status_SUCCESS) {
		return errors.Errorf("proposal failed with status: %d - %s", proposalResponse.Response.Status, proposalResponse.Response.Message)
	}
	// assemble a signed transaction (it's an Envelope message)
	env, err := protoutil.CreateSignedTx(proposal, a.Signer, responses...)
	if err != nil {
		return errors.WithMessage(err, "failed to create signed transaction")
	}
	var dg *chaincode.DeliverGroup
	var ctx context.Context
	if a.Input.WaitForEvent {
		var cancelFunc context.CancelFunc
		ctx, cancelFunc = context.WithTimeout(context.Background(), a.Input.WaitForEventTimeout)
		defer cancelFunc()

		dg = chaincode.NewDeliverGroup(

View on GitHub (pinned to 2736b63f8f)

Solutions

1. Inspect peer logs for the endorsement processing error that yielded a malformed response
2. Retry the approval; if persistent, verify peer/CLI version compatibility
3. Confirm network stability between CLI and endorser (gRPC stream integrity)

When it happens

Trigger: Thrown at internal/peer/lifecycle/chaincode/approveformyorg.go:198 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/1cb623dd51fc8c32. Report an issue: GitHub.