---
title: AccessoryMessage.Error
framework: accessorytransportextension
role: symbol
role_heading: Enumeration
path: accessorytransportextension/accessorymessage/error
---

# AccessoryMessage.Error

An enumeration of errors that can occur during message transmission.

## Declaration

```swift
enum Error
```

## Topics

### Identifying error types

- [AccessoryMessage.Error.transportFailed](accessorytransportextension/accessorymessage/error/transportfailed.md)
- [AccessoryMessage.Error.transportUnavailable](accessorytransportextension/accessorymessage/error/transportunavailable.md)

## Relationships

### Conforms To

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

## See Also

### Assessing outcomes

- [AccessoryMessage.Result](accessorytransportextension/accessorymessage/result.md)