---
title: DCError
framework: DeviceCheck
role: symbol
role_heading: Structure
platforms: [iOS 11.0+, iPadOS 11.0+, Mac Catalyst 13.1+, macOS 10.15+, tvOS 11.0+, visionOS 1.0+, watchOS 9.0+]
path: devicecheck/dcerror-swift.struct
---

# DCError

A type that indicates when DeviceCheck encounters an error.

## Declaration

```swift
struct DCError
```

## Topics

### Errors

- [featureUnsupported](devicecheck/dcerror-swift.struct/featureunsupported.md)
- [invalidInput](devicecheck/dcerror-swift.struct/invalidinput.md)
- [invalidKey](devicecheck/dcerror-swift.struct/invalidkey.md)
- [serverUnavailable](devicecheck/dcerror-swift.struct/serverunavailable.md)
- [unknownSystemFailure](devicecheck/dcerror-swift.struct/unknownsystemfailure.md)
- [DCError.Code](devicecheck/dcerror-swift.struct/code.md)

### Error information

- [errorDomain](devicecheck/dcerror-swift.struct/errordomain.md)

## Relationships

### Conforms To

- [CustomNSError](foundation/customnserror.md)
- [Equatable](swift/equatable.md)
- [Error](swift/error.md)
- [Hashable](swift/hashable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Errors

- [DCError.Code](devicecheck/dcerror-swift.struct/code.md)
- [DCErrorDomain](devicecheck/dcerrordomain.md)