---
title: notSocket
framework: system
role: symbol
role_heading: Type Property
path: system/errno/notsocket
---

# notSocket

A socket operation was performed on something that isn’t a socket.

## Declaration

```swift
static var notSocket: Errno { get }
```

## Mentioned in

Adopting Swift Error Constants

## Discussion

Discussion The corresponding C error is ENOTSOCK.

## See Also

### Network Socket Errors

- [notSupportedOnSocket](system/errno/notsupportedonsocket.md)
- [socketIsConnected](system/errno/socketisconnected.md)
- [socketNotConnected](system/errno/socketnotconnected.md)
- [socketShutdown](system/errno/socketshutdown.md)
- [socketTypeNotSupported](system/errno/sockettypenotsupported.md)