Errors/Chain errors
WeightVecNotEqualSize
Check the argument values against the operation schema
The uids and values vectors passed to a weight-setting call have different lengths, so they cannot be paired. Check the call arguments; both vectors must have exactly one value per UID.
Declared by the SubtensorModule pallet; it classifies to the semantic code invalid_argument.
Remediation
Check the argument values against the operation schema
The same explanation is available in the terminal: btcli explain WeightVecNotEqualSize.