---
title: "request(_:didFailWithError:)"
framework: systemextensions
role: symbol
role_heading: Instance Method
path: "systemextensions/ossystemextensionrequestdelegate/request(_:didfailwitherror:)"
---

# request(_:didFailWithError:)

Tells the delegate the manager failed to complete the request.

## Declaration

```swift
func request(_ request: OSSystemExtensionRequest, didFailWithError error: any Error)
```

## Parameters

- `request`: The request that failed.
- `error`: The reason the request failed.

## Mentioned in

Installing System Extensions and Drivers

## See Also

### Handling Success and Failure

- [request(_:didFinishWithResult:)](systemextensions/ossystemextensionrequestdelegate/request(_:didfinishwithresult:).md)
- [OSSystemExtensionRequest.Result](systemextensions/ossystemextensionrequest/result.md)