Errors/Chain errors
SymbolDoesNotExist
The referenced object is not on-chain; check the identifier
The requested token symbol is not in the chain's predefined symbol table, so it cannot be assigned to a subnet. Check the symbol argument against the chain's built-in SYMBOLS list and choose a valid entry.
Declared by the SubtensorModule pallet; it classifies to the semantic code not_found.
Remediation
The referenced object is not on-chain; check the identifier
The same explanation is available in the terminal: btcli explain SymbolDoesNotExist.