---
title: "PaymentCardReaderError.prepareFailed(_:)"
framework: proximityreader
role: symbol
role_heading: Case
path: "proximityreader/paymentcardreadererror/preparefailed(_:)"
---

# PaymentCardReaderError.prepareFailed(_:)

An error that indicates preparation failed.

## Declaration

```swift
case prepareFailed(String?)
```

## Discussion

Discussion This error occurs when a call to the prepare(using:) method fails. Check the description for more details and try to prepare the reader again. If the error persists, contact support.

## See Also

### Getting the error code

- [PaymentCardReaderError.accountAlreadyLinked](proximityreader/paymentcardreadererror/accountalreadylinked.md)
- [PaymentCardReaderError.accountDeactivated](proximityreader/paymentcardreadererror/accountdeactivated.md)
- [PaymentCardReaderError.accountLinkingCancelled](proximityreader/paymentcardreadererror/accountlinkingcancelled.md)
- [PaymentCardReaderError.accountLinkingCheckFailed](proximityreader/paymentcardreadererror/accountlinkingcheckfailed.md)
- [PaymentCardReaderError.accountLinkingFailed](proximityreader/paymentcardreadererror/accountlinkingfailed.md)
- [PaymentCardReaderError.accountLinkingRequiresiCloudSignIn](proximityreader/paymentcardreadererror/accountlinkingrequiresicloudsignin.md)
- [PaymentCardReaderError.accountNotLinked](proximityreader/paymentcardreadererror/accountnotlinked.md)
- [PaymentCardReaderError.backgroundRequestNotAllowed](proximityreader/paymentcardreadererror/backgroundrequestnotallowed.md)
- [PaymentCardReaderError.deviceBanned(_:)](proximityreader/paymentcardreadererror/devicebanned(_:).md)
- [PaymentCardReaderError.emptyReaderToken](proximityreader/paymentcardreadererror/emptyreadertoken.md)
- [PaymentCardReaderError.invalidMerchant](proximityreader/paymentcardreadererror/invalidmerchant.md)
- [PaymentCardReaderError.invalidReaderToken(_:)](proximityreader/paymentcardreadererror/invalidreadertoken(_:).md)
- [PaymentCardReaderError.merchantBlocked](proximityreader/paymentcardreadererror/merchantblocked.md)
- [PaymentCardReaderError.modelNotSupported](proximityreader/paymentcardreadererror/modelnotsupported.md)
- [PaymentCardReaderError.networkAuthenticationError](proximityreader/paymentcardreadererror/networkauthenticationerror.md)