Transaction error while wiping out a wallet

Developers Misc Dev Talk
1

Hi,

I want to move my ADA in stake pool (payment.addr) to my other wallet. I constructed the txn message, signed it and when I submit the transaction, I get the following error.

Command failed: transaction submit Error: Error while submitting tx: ShelleyTxValidationError ShelleyBasedEraAlonzo (ApplyTxError [UtxowFailure (WrappedShelleyEraFailure (UtxoFailure (OutputTooSmallUTxO [(Addr Mainnet (KeyHashObj (KeyHash “4c7d6f75680f54684022c1e67ca874f1da24edec2604e54f6e88653a”)) (StakeRefBase (KeyHashObj (KeyHash “c31f05dcaadcf66568003cd64e7223da01b620ee81dcbbc219547d40”))),Value 689775 (fromList ),SNothing)])))])

I am trying to send 55 ADA in this txn, which is the total available balance in the wallet. I know the remaining balance will be less than 1 ADA… is this the problem? In that case, can we not wipe out a wallet to the last lovelace?

Please, can someone enlighten me on what is happening?
My cardano-cli version is 1.32.1 -and- cardano-node is also 1.32.1

Thanks,
-Ismail

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2

Yes, the problem is that the remaining output of 689775 lovelace is less than 1 ADA.
You have 2 options:

  1. send more than 55 ADA (add the 689775 lovelace to that amount)
  2. pay the 689775 lovelace as transaction fees (the already existing transaction fee plus the 689775 lovelace).
3

Thanks George.

  1. send more than 55 ADA (add the 689775 lovelace to that amount)
    → I tried the txn as you mentioned. The UTXO output is 0… but then I got the exact same error - OutputTooSmallUTxO

  2. pay the 689775 lovelace as transaction fees (the already existing transaction fee plus the 689775 lovelace).
    → Do you mean to say I forgo the 689775 lovelace?.. no big deal but just want to understand how it works.

It appears to me that you need to leave at least 1 ADA UTXO output. That means we cannot wipe-off a wallet to absolute 0 ADA.

Interested to hear more comments…

4

Can you share your build command?

If you want to wipe out the wallet completely, there should obviously be no --tx-out for an address in this old, wiped-out wallet. Then it should also not complain about an output that is too small.

5

I have a bash script that does it. Here are the excerpts of sequence of commands that I use.

1, cardano-cli query utxo --address $(cat payment.addr) --mainnet
→ Query the UTXOs and add them up to get the total balance. Then I check if there is enough balance to do the txn.

2, cardano-cli transaction build-raw $tx_in --tx-out $to_addr+0 --tx-out $(cat payment.addr)+0 --invalid-hereafter 0 --fee 0 --out-file $txn_file
→ build-raw to calculate the min txn fee

3, cardano-cli transaction calculate-min-fee --tx-body-file $txn_file --tx-in-count $tx_in_count --tx-out-count 2 --witness-count 1 --byron-witness-count 0 --mainnet --protocol-params-file protocol-params.json
→ Calculate the min fee, balance after the transfer

4, cardano-cli transaction build-raw $tx_in --tx-out $to_addr+$value --tx-out $(cat payment.addr)+$balance_after_txn --invalid-hereafter $slot_TTL --fee $fee --out-file txn.to_sign
→ build-raw txn again, but with the proper value, balance_after_txn… the output will be signed in cold env.

Should I not include the --tx-out when the UTXO output is 0?

6

Exactly that. You want your transaction output to completely go to the other address, so you don’t want any change back in payment.addr.

7

Thanks Sean. That worked! You saved a lot of head scratch… :+1:

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