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

Returned by CommitInput.Validate when the sequence number is zero/unset for a commit invocation — the mandatory --sequence flag was omitted. Sequence is the definition's ledger sequence and must be a positive integer.

Source

Thrown at internal/peer/lifecycle/chaincode/commit.go:75

	TxID                     string
}

// Validate the input for a CommitChaincodeDefinition proposal
func (c *CommitInput) 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
}

// CommitCmd returns the cobra command for chaincode Commit
func CommitCmd(c *Committer, cryptoProvider bccsp.BCCSP) *cobra.Command {
	chaincodeCommitCmd := &cobra.Command{
		Use:   "commit",
		Short: "Commit the chaincode definition on the channel.",
		Long:  "Commit the chaincode definition on the 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. Rerun with --sequence set to the approved definition's sequence, e.g. --sequence 1.
  2. Run `peer lifecycle chaincode queryapproved -C mychannel -n mycc` to find the sequence.
  3. For upgrades, increment the sequence from the previous commit.
  4. In code, set CommitInput.Sequence before calling Commit.

Example fix

// before
peer lifecycle chaincode commit -C mychannel -n mycc -v 1.0
// after
peer lifecycle chaincode commit -C mychannel -n mycc -v 1.0 --sequence 1
Defensive patterns

Strategy: validation

Validate before calling

if sequence == 0 {
    return errors.New("sequence required: use --sequence flag")
}

Type guard

func hasSequence(c *CommitInput) bool { return c != nil && c.Sequence > 0 }

Try / catch

if err := run(); err != nil {
    if strings.Contains(err.Error(), "parameter 'sequence' is empty") {
        // re-run with --sequence from queryapproved
    }
}

Prevention

When it happens

Trigger: Constructing CommitInput with Sequence == 0 and calling Validate — e.g. `peer lifecycle chaincode commit` run without --sequence.

Common situations: First commit forgetting --sequence 1; subsequent upgrades reusing an old sequence; not checking queryapproved for the next expected sequence.

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


AI-assisted analysis of hyperledger/fabric@2736b63f8f (2026-09-04). Data as JSON: /api/errors/b806ab6f4cfc1d58. Report an issue: GitHub.