FirstEmissionBlockNumberAlreadySet

The object or state already exists; treat the goal as met or pick a different target

btcli sudo start was issued for a subnet whose emissions have already been started. Check with btcli sudo check-start; if the subnet is already emitting, no action is needed.

Declared by the SubtensorModule pallet; it classifies to the semantic code already_exists.

Declared at pallets/subtensor/src/macros/errors.rs#L201.

Remediation

The object or state already exists; treat the goal as met or pick a different target

The same explanation is available in the terminal: btcli explain FirstEmissionBlockNumberAlreadySet.