---
title: kCFXMLTreeErrorLineNumber
framework: Core Foundation
role: symbol
role_heading: Global Variable
path: corefoundation/kcfxmltreeerrorlinenumber
---

# kCFXMLTreeErrorLineNumber

Dictionary key whose value is a CFNumber containing the line number where the error was detected. This may not be the line number where the actual XML error is located.

## Declaration

```swift
let kCFXMLTreeErrorLineNumber: CFString!
```

## See Also

### Constants

- [kCFXMLTreeErrorDescription](corefoundation/kcfxmltreeerrordescription.md)
- [kCFXMLTreeErrorLocation](corefoundation/kcfxmltreeerrorlocation.md)
- [kCFXMLTreeErrorStatusCode](corefoundation/kcfxmltreeerrorstatuscode.md)