Errors/Chain errors
SymbolAlreadyInUse
The object or state already exists; treat the goal as met or pick a different target
The token symbol requested for the subnet is already assigned to another subnet. Scan TokenSymbol across netuids and pick a symbol that is not taken.
Declared by the SubtensorModule pallet; it classifies to the semantic code already_exists.
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 SymbolAlreadyInUse.