InsufficientInputAmount

Declared for swap inputs too small to execute, but no current code path raises it since the user-liquidity code was removed. If seen on an older runtime, check that the swap input amount is nonzero and large enough to produce output.

Declared by the Swap 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 InsufficientInputAmount.