---
title: QLThumbnailErrorDomain
framework: Quick Look Thumbnailing
role: symbol
role_heading: Global Variable
platforms: [iOS 13.0+, iPadOS 13.0+, Mac Catalyst 13.1+, macOS 10.15+, visionOS 1.0+]
path: quicklookthumbnailing/qlthumbnailerrordomain
---

# QLThumbnailErrorDomain

The error domain of the QuickLookThumbnailing framework.

## Declaration

```swift
let QLThumbnailErrorDomain: String
```

## See Also

### Error Information

- [QLThumbnailError](quicklookthumbnailing/qlthumbnailerror-swift.struct.md)
- [QLThumbnailError.Code](quicklookthumbnailing/qlthumbnailerror-swift.struct/code.md)