---
title: QLThumbnailError.Code.generationFailed
framework: Quick Look Thumbnailing
role: symbol
role_heading: Case
platforms: [iOS 13.0+, iPadOS 13.0+, Mac Catalyst 13.1+, macOS 10.15+, visionOS 1.0+]
path: quicklookthumbnailing/qlthumbnailerror-swift.struct/code/generationfailed
---

# QLThumbnailError.Code.generationFailed

The thumbnail couldn’t be created for the given file.

## Declaration

```swift
case generationFailed
```

## See Also

### Error Codes

- [QLThumbnailError.Code.noCachedThumbnail](quicklookthumbnailing/qlthumbnailerror-swift.struct/code/nocachedthumbnail.md)
- [QLThumbnailError.Code.noCloudThumbnail](quicklookthumbnailing/qlthumbnailerror-swift.struct/code/nocloudthumbnail.md)
- [QLThumbnailError.Code.requestCancelled](quicklookthumbnailing/qlthumbnailerror-swift.struct/code/requestcancelled.md)
- [QLThumbnailError.Code.requestInvalid](quicklookthumbnailing/qlthumbnailerror-swift.struct/code/requestinvalid.md)
- [QLThumbnailError.Code.savingToURLFailed](quicklookthumbnailing/qlthumbnailerror-swift.struct/code/savingtourlfailed.md)