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

# NSFileProviderError.Code.cannotSynchronize

An error indicating a failed sync attempt.

## Declaration

```swift
case cannotSynchronize
```

## Discussion

Discussion If a specific item caused the error, the system sets the NSFileProviderErrorItemKey key to the item’s identifier, and it sets the NSUnderlyingErrorKey key to the error encountered by the item.

## 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.notAuthenticated](fileprovider/nsfileprovidererror/code/notauthenticated.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)