# `Foundation.NSError`

*Extended Class*

## Declaration

```swift
extension NSError
```

## Topics

### Initializers

- [`NSError init(description:code:)`](/Core/GlyphsCore/Foundation/NSError/init(description:code:))
- [`NSError init(description:suggestion:code:)`](/Core/GlyphsCore/Foundation/NSError/init(description:suggestion:code:))
- [`NSError init(exception:domain:code:)`](/Core/GlyphsCore/Foundation/NSError/init(exception:domain:code:))

### Type Methods

- [`NSError errorDummy()`](/Core/GlyphsCore/Foundation/NSError/errorDummy())
- [`NSError fileFormatError(_:requiredFormat:)`](/Core/GlyphsCore/Foundation/NSError/fileFormatError(_:requiredFormat:))
- [`NSError fileFormatError(_:requiredFormat:code:options:)`](/Core/GlyphsCore/Foundation/NSError/fileFormatError(_:requiredFormat:code:options:))