Errors/Chain errors
RegistrationNotPermittedOnRootSubnet
Do not register on netuid 0 with the normal register path; use the root register flow instead
A neuron registration or child-hotkey operation (register, burned_register, set_children) was called with the root netuid, where these calls are invalid. Check the netuid argument; use a regular subnet, or root_register for root membership.
Declared by the SubtensorModule pallet; it classifies to the semantic code invalid_argument.
Declared at pallets/subtensor/src/macros/errors.rs#L107.
Remediation
Do not register on netuid 0 with the normal register path; use the root register flow instead
The same explanation is available in the terminal: btcli explain RegistrationNotPermittedOnRootSubnet.