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  "title" : "AccessoryTransportSession.Error"
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# AccessoryTransportSession.Error

Errors that can occur with an accessory transport session.

```
enum Error
```

## Topics

### Identifying session errors

[`case invalidated`](/documentation/AccessoryTransportExtension/AccessoryTransportSession/Error/invalidated)

An error that indicates the session is invalidated.

[`case unsupported`](/documentation/AccessoryTransportExtension/AccessoryTransportSession/Error/unsupported)

An error that indicates the framework doesn’t support an client-provided value or operation.

[`case unknown`](/documentation/AccessoryTransportExtension/AccessoryTransportSession/Error/unknown)

An error that indicates a failure with an unknown cause.

### Describing an error

[`var description: String`](/documentation/AccessoryTransportExtension/AccessoryTransportSession/Error/description)

A string that describes the transport-session error.

## Relationships

### Conforms To

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`Error`](/documentation/Swift/Error)

[`Equatable`](/documentation/Swift/Equatable)

[`Hashable`](/documentation/Swift/Hashable)

[`Sendable`](/documentation/Swift/Sendable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

---

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