---
title: NEURLFilterManager.Error
framework: networkextension
role: symbol
role_heading: Enumeration
path: networkextension/neurlfiltermanager/error
---

# NEURLFilterManager.Error

An enumeration of URL filter error codes

## Declaration

```swift
enum Error
```

## Topics

### Configuration errors

- [NEURLFilterManager.Error.configurationUnchanged](networkextension/neurlfiltermanager/error/configurationunchanged.md)
- [NEURLFilterManager.Error.configurationInvalid](networkextension/neurlfiltermanager/error/configurationinvalid.md)
- [NEURLFilterManager.Error.configurationDisabled](networkextension/neurlfiltermanager/error/configurationdisabled.md)
- [NEURLFilterManager.Error.configurationStale](networkextension/neurlfiltermanager/error/configurationstale.md)
- [NEURLFilterManager.Error.configurationCannotBeRemoved](networkextension/neurlfiltermanager/error/configurationcannotberemoved.md)
- [NEURLFilterManager.Error.configurationPermissionDenied](networkextension/neurlfiltermanager/error/configurationpermissiondenied.md)
- [NEURLFilterManager.Error.configurationInternalError](networkextension/neurlfiltermanager/error/configurationinternalerror.md)
- [NEURLFilterManager.Error.configurationNotLoaded](networkextension/neurlfiltermanager/error/configurationnotloaded.md)

### Server errors

- [NEURLFilterManager.Error.serverSetupIncomplete](networkextension/neurlfiltermanager/error/serversetupincomplete.md)

### Extension errors

- [NEURLFilterManager.Error.extensionCancelled](networkextension/neurlfiltermanager/error/extensioncancelled.md)
- [NEURLFilterManager.Error.extensionNotFound](networkextension/neurlfiltermanager/error/extensionnotfound.md)
- [NEURLFilterManager.Error.extensionFailedToLoad](networkextension/neurlfiltermanager/error/extensionfailedtoload.md)

### Other errors

- [NEURLFilterManager.Error.internalError](networkextension/neurlfiltermanager/error/internalerror.md)
- [NEURLFilterManager.Error.unknown](networkextension/neurlfiltermanager/error/unknown.md)

## Relationships

### Conforms To

- [Copyable](swift/copyable.md)
- [Equatable](swift/equatable.md)
- [Error](swift/error.md)
- [Escapable](swift/escapable.md)
- [Hashable](swift/hashable.md)
- [LocalizedError](foundation/localizederror.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Handling errors

- [lastDisconnectError](networkextension/neurlfiltermanager/lastdisconnecterror.md)