---
title: notSupportedOnSocket
framework: system
role: symbol
role_heading: Type Property
path: system/errno/notsupportedonsocket
---

# notSupportedOnSocket

Operation not supported on socket.

## Declaration

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

## Mentioned in

Adopting Swift Error Constants

## Discussion

Discussion The attempted operation isn’t supported for the type of socket referenced; for example, trying to accept a connection on a datagram socket. The corresponding C error is EOPNOTSUPP.

## See Also

### Network Socket Errors

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