---
title: unknownError
framework: passkit
role: symbol
role_heading: Type Property
path: passkit/pkaddsecureelementpasserror/unknownerror
---

# unknownError

An error that occurs when PassKit cancels the addition of a Secure Element pass due to an unknown failure.

## Declaration

```swift
static var unknownError: PKAddSecureElementPassError.Code { get }
```

## See Also

### Identifying errors

- [deviceNotReadyError](passkit/pkaddsecureelementpasserror/devicenotreadyerror.md)
- [deviceNotSupportedError](passkit/pkaddsecureelementpasserror/devicenotsupportederror.md)
- [invalidConfigurationError](passkit/pkaddsecureelementpasserror/invalidconfigurationerror.md)
- [unavailableError](passkit/pkaddsecureelementpasserror/unavailableerror.md)
- [userCanceledError](passkit/pkaddsecureelementpasserror/usercancelederror.md)
- [PKAddSecureElementPassError.Code](passkit/pkaddsecureelementpasserror/code.md)