# InvalidSubnetNumber (/docs/errors/chain/InvalidSubnetNumber)

A root-claim call passed an empty subnet set or more subnets than the per-call maximum (claim\_root, or KeepSubnets in set\_root\_claim\_type). Check the `subnets` argument is non-empty and within the `MAX_SUBNET_CLAIMS` limit.

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

## Remediation [#remediation]

Check the argument values against the operation schema

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