---
title: CFNetDiagnosticStatusValues.err
framework: cfnetwork
role: symbol
role_heading: Case
path: cfnetwork/cfnetdiagnosticstatusvalues/err
---

# CFNetDiagnosticStatusValues.err

An error occurred that prevented the call from completing.

## Declaration

```swift
case err
```

## See Also

### Constants

- [CFNetDiagnosticStatusValues.noErr](cfnetwork/cfnetdiagnosticstatusvalues/noerr.md)
- [CFNetDiagnosticStatusValues.connectionUp](cfnetwork/cfnetdiagnosticstatusvalues/connectionup.md)
- [CFNetDiagnosticStatusValues.connectionIndeterminate](cfnetwork/cfnetdiagnosticstatusvalues/connectionindeterminate.md)
- [CFNetDiagnosticStatusValues.connectionDown](cfnetwork/cfnetdiagnosticstatusvalues/connectiondown.md)