# EmissionWeightsNotSettableOnRoot (/docs/errors/chain/EmissionWeightsNotSettableOnRoot)

`sudo_set_subnet_emission_weights` was called for netuid 0. The root network has no alpha emission to divide, so it carries no emission weight vector; pass a subnet netuid.

Declared by the `SubtensorModule` pallet; it classifies to the semantic code [`invalid_argument`](/docs/errors/invalid-argument).

Declared at [`pallets/subtensor/src/macros/errors.rs#L457`](/code/pallets/subtensor/src/macros/errors.rs#L457).

## Remediation [#remediation]

Check the argument values against the operation schema

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