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Transaction Errors

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Jake
  • Updated

Common transaction errors:

  • BadInputsUTXO
  • ValueNotConservedUTXO
  • ExpiredUTXO
  • Failed reading. Your input is either malformed or not hex encoded

Error: BadInputsUTXO

$ cardano-cli shelley transaction submit \
--tx-file tx001.signed \
--testnet-magic 42

> ApplyTxError [LedgerFailure (UtxowFailure (UtxoFailure (BadInputsUTxO 
(fromList [TxIn (TxId 
{_TxId = f5296e996940b1c81f781594293d423b4250a454f5832b0740a923f74460d34e}) ]))))

Diagnostic:

Bad UTXO transaction index

Solution: 

Verify the UTXO transaction index with 

$ cardano-cli shelley query utxo \
 --address $(cat payment.addr) \
 --testnet-magic 42

>  TxHash                                    TxIx      Lovelace
--------------------------------------------------------------------------
7f1d95ce599c84064c61903c0b1334c826b55c48a1.... 1      1000000000000

 

Error: ValueNotConservedUTXO

$ cardano-cli shelley transaction submit \
> --tx-file tx001.signed \
> --testnet-magic 42

ApplyTxError [LedgerFailure (UtxowFailure (UtxoFailure 
(FeeTooSmallUTxO (Coin 172409) (Coin 167965)))),LedgerFailure 
(UtxowFailure (UtxoFailure (ValueNotConservedUTxO (Coin 1000000000) 
(Coin 999999998))))]

Diagnostic:

Value not Conserved: (Input UTXO ≠ Fee + Amount sent + Change)

Solution: Check that Input amounts = Output amounts

 

Error: ExpiredUTXO

$ cardano-cli shelley transaction submit \
> --tx-file tx001.signed \
> --testnet-magic 42

ApplyTxError [LedgerFailure (UtxowFailure (UtxoFailure 
(ExpiredUTxO {pfUTXOttl = SlotNo {unSlotNo = 123456}, 
pfUTXOcurrentSlot = SlotNo {unSlotNo = 123457}})))]

Diagnostic:

TTL has already passed. 

Solution:

Look at pfUTXOttl and pfUTXOcurrentSlot. Current Slot is ahead of UTXOttl. 

Build a new transaction with a TTL (Time to Live) higher that Current Slot. As a rule of thumb, give yourself a 300-500 slots to builld, sign and submit the transaction.  

 

Error: Failed reading: Your input is either malformed or not hex encoded

$ cardano-cli shelley transaction build-raw \
--tx-in f5296e996940b1c81f781594293d423b4250a454f5832b0740a923f74460d34#1 \
--tx-out $(cat payment2.addr)+100000000 \
--tx-out $(cat payment.addr)+899832033 \
--ttl 335000 --fee 167965 \
--out-file tx001.raw

> option --tx-in: Failed reading: Your input is either 
malformed or not hex encoded: 
f5296e996940b1c81f781594293d423b4250a454f5832b0740a923f74460d34

Diagnostic: 

tx-in is not a valid UTXO 

Solution:

Make sure that you are using a correct UTXO. You can query it with: 

$ cardano-cli shelley query utxo \
 --address $(cat payment.addr) \
 --testnet-magic 42

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