---
title: MCError
framework: multipeerconnectivity
role: symbol
role_heading: Structure
path: multipeerconnectivity/mcerror
---

# MCError

## Declaration

```swift
struct MCError
```

## Topics

### Type Properties

- [cancelled](multipeerconnectivity/mcerror/cancelled.md)
- [errorDomain](multipeerconnectivity/mcerror/errordomain.md)
- [invalidParameter](multipeerconnectivity/mcerror/invalidparameter.md)
- [notConnected](multipeerconnectivity/mcerror/notconnected.md)
- [timedOut](multipeerconnectivity/mcerror/timedout.md)
- [unavailable](multipeerconnectivity/mcerror/unavailable.md)
- [unknown](multipeerconnectivity/mcerror/unknown.md)
- [unsupported](multipeerconnectivity/mcerror/unsupported.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)