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# ALAssetsLibraryDataUnavailableError

The data was not available.

```
var ALAssetsLibraryDataUnavailableError: Int { get }
```

## Discussion

This error may be returned in the [`ALAssetsLibraryAccessFailureBlock`](/documentation/AssetsLibrary/ALAssetsLibraryAccessFailureBlock) for `ALAssetsLibrary/enumerateGroups(withTypes:using:failureBlock:)` and `ALAssetsLibrary/asset(for:resultBlock:failureBlock:)`; and in the completion blocks for `ALAssetsLibrary/writeImage(toSavedPhotosAlbum:orientation:completionBlock:)` and `ALAssetsLibrary/writeImage(toSavedPhotosAlbum:orientation:completionBlock:)`; as well as in the completion selector for <doc://com.apple.documentation/documentation/UIKit/UIImageWriteToSavedPhotosAlbum(_:_:_:_:)> and <doc://com.apple.documentation/documentation/UIKit/UISaveVideoAtPathToSavedPhotosAlbum(_:_:_:_:)>.

---

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