---
title: NSFileProviderError.Code.notAuthenticated
framework: fileprovider
role: symbol
role_heading: Case
path: fileprovider/nsfileprovidererror/code/notauthenticated
---

# NSFileProviderError.Code.notAuthenticated

An error indicating that you can’t verify the user’s credentials.

## Declaration

```swift
case notAuthenticated
```

## Discussion

Discussion If your File Provider extension returns a notAuthenticated error, the system presents an alert to the user. If you have a File Provider UI extension, the system calls your FPUIActionExtensionViewController class’s prepare(forError:) method before displaying the alert.

## See Also

### Error codes

- [NSFileProviderError.Code.filenameCollision](fileprovider/nsfileprovidererror/code/filenamecollision.md)
- [NSFileProviderError.Code.insufficientQuota](fileprovider/nsfileprovidererror/code/insufficientquota.md)
- [NSFileProviderError.Code.noSuchItem](fileprovider/nsfileprovidererror/code/nosuchitem.md)
- [NSFileProviderError.Code.serverUnreachable](fileprovider/nsfileprovidererror/code/serverunreachable.md)
- [NSFileProviderError.Code.syncAnchorExpired](fileprovider/nsfileprovidererror/code/syncanchorexpired.md)
- [pageExpired](fileprovider/nsfileprovidererror/code/pageexpired.md)
- [NSFileProviderError.Code.directoryNotEmpty](fileprovider/nsfileprovidererror/code/directorynotempty.md)
- [NSFileProviderError.Code.providerNotFound](fileprovider/nsfileprovidererror/code/providernotfound.md)
- [NSFileProviderError.Code.providerTranslocated](fileprovider/nsfileprovidererror/code/providertranslocated.md)
- [NSFileProviderError.Code.olderExtensionVersionRunning](fileprovider/nsfileprovidererror/code/olderextensionversionrunning.md)
- [NSFileProviderError.Code.newerExtensionVersionFound](fileprovider/nsfileprovidererror/code/newerextensionversionfound.md)
- [NSFileProviderError.Code.nonEvictable](fileprovider/nsfileprovidererror/code/nonevictable.md)
- [NSFileProviderError.Code.nonEvictableChildren](fileprovider/nsfileprovidererror/code/nonevictablechildren.md)
- [NSFileProviderError.Code.unsyncedEdits](fileprovider/nsfileprovidererror/code/unsyncededits.md)
- [NSFileProviderError.Code.cannotSynchronize](fileprovider/nsfileprovidererror/code/cannotsynchronize.md)