# ApplyTxError \[LedgerFailure (UtxowFailure (MissingVKeyWitnessesUTXOW))\]

**URL:** <https://forum.cardano.org/t/applytxerror-ledgerfailure-utxowfailure-missingvkeywitnessesutxow/37967>\
**Category:** Operate a Stake Pool\
**Created:** [8 August 2020 21:57 UTC](https://forum.cardano.org/t/applytxerror-ledgerfailure-utxowfailure-missingvkeywitnessesutxow/37967 "2020-08-08T21:57:46Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![ADAfrog](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.cardano.org/adafrog/32/16303_2.png) [@ADAfrog](https://forum.cardano.org/u/ADAfrog)\
**Post date:** [9 August 2020 00:01 UTC](https://forum.cardano.org/t/applytxerror-ledgerfailure-utxowfailure-missingvkeywitnessesutxow/37967/2 "2020-08-09T00:01:07Z")

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MissingVKeyWitnessesUTXOW means one or more of the required private keys didn’t sign.

The utxo you are querying is payment-source.addr and the build transaction is being funding by with “payment-source.addr” - these are consistent, but the transaction is being singed with payment.skey

Do you have a payment-source.skey you can sign the transaction with?

This transaction should fail:

also, be extra careful to avoid repeating any steps where you may accidentally overwrite existing keys

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