hyperledger/fabric · error

The required parameter 'sequence' is empty. Rerun the comman

Error message

The required parameter 'sequence' is empty. Rerun the command with --sequence flag

What it means

This error is thrown by CommitReadinessCheckInput.Validate() when the 'sequence' field is 0. Sequence is a mandatory monotonically increasing integer in a chaincode definition, and the zero value of the Go uint64 field is treated as 'not provided'. The message points to the --sequence CLI flag.

Source

Thrown at internal/peer/lifecycle/chaincode/checkcommitreadiness.go:78

	InspectionEnabled        bool
}

// Validate the input for a CheckCommitReadiness proposal
func (c *CommitReadinessCheckInput) Validate() error {
	if c.ChannelID == "" {
		return errors.New("The required parameter 'channelID' is empty. Rerun the command with -C flag")
	}

	if c.Name == "" {
		return errors.New("The required parameter 'name' is empty. Rerun the command with -n flag")
	}

	if c.Version == "" {
		return errors.New("The required parameter 'version' is empty. Rerun the command with -v flag")
	}

	if c.Sequence == 0 {
		return errors.New("The required parameter 'sequence' is empty. Rerun the command with --sequence flag")
	}

	return nil
}

// CheckCommitReadinessCmd returns the cobra command for the
// CheckCommitReadiness lifecycle operation
func CheckCommitReadinessCmd(c *CommitReadinessChecker, cryptoProvider bccsp.BCCSP) *cobra.Command {
	chaincodeCheckCommitReadinessCmd := &cobra.Command{
		Use:   "checkcommitreadiness",
		Short: "Check whether a chaincode definition is ready to be committed on a channel.",
		Long:  "Check whether a chaincode definition is ready to be committed on a channel.",
		RunE: func(cmd *cobra.Command, args []string) error {
			if c == nil {
				// set input from CLI flags
				input, err := c.createInput()
				if err != nil {
					return err

View on GitHub (pinned to 2736b63f8f)

Solutions

1. Re-run with --sequence set to the next definition number (1 for the first), e.g. 'peer lifecycle chaincode checkcommitreadiness -C mychannel -n mycc -v 1.0 --sequence 1'
2. In Go, set Sequence: 1 (or the next incremented value) on CommitReadinessCheckInput
3. Track the current committed sequence with 'peer lifecycle chaincode querycommitted' and increment it

Example fix

// before
c := &client.CommitReadinessCheckInput{ChannelID: "mychannel", Name: "mycc", Version: "1.0"}
// Sequence is 0 -> error
// after
c := &client.CommitReadinessCheckInput{ChannelID: "mychannel", Name: "mycc", Version: "1.0", Sequence: 1}

func validate(input *CommitReadinessCheckInput) error {
    if input.Sequence == 0 {
        return fmt.Errorf("--sequence is required and must be >= 1 (first definition uses 1)")
    }
    return nil
}

if err := input.Validate(); err != nil {
    if strings.Contains(err.Error(), "'sequence' is empty") {
        // default to committed sequence + 1 and retry
    }
    return err
}

When it happens

Trigger: Calling ReadinessCheck with CommitReadinessCheckInput.Sequence == 0, e.g. running the CLI without --sequence, or passing 0 because the caller assumed sequence starts at 0 (it starts at 1).

Common situations: First deployment where developers guess sequence 0; forgotten --sequence flag in scripts; a Go caller leaving Sequence at its zero value.

Understand the failure class

Background: "missing required argument" and "the following required arguments were not provided": what required-argument errors mean and how to fix them — this error's family across 20 libraries.

Related errors

• The required parameter 'name' is empty. Rerun the command wi
• The required parameter 'version' is empty. Rerun the command
• non-empty JSON chaincode parameters must contain the followi
• empty JSON chaincode parameters must contain the following k
• The required parameter 'channelID' is empty. Rerun the comma

AI-assisted analysis of hyperledger/fabric@2736b63f8f (2026-09-04). Data as JSON: /api/errors/e502a7b7d115504e. Report an issue: GitHub.