---
title: AppExtensionPoint.Error
framework: extensionfoundation
role: symbol
role_heading: Enumeration
path: extensionfoundation/appextensionpoint/error
---

# AppExtensionPoint.Error

Error codes for monitor-related requests.

## Declaration

```swift
enum Error
```

## Topics

### Getting the error codes

- [AppExtensionPoint.Error.hostMustBeApplicationOrAppExtension](extensionfoundation/appextensionpoint/error/hostmustbeapplicationorappextension.md)
- [AppExtensionPoint.Error.hostMustDefineAppExtensionPoint(_:)](extensionfoundation/appextensionpoint/error/hostmustdefineappextensionpoint(_:).md)
- [AppExtensionPoint.Error.hostMustHaveBundleIdentifier](extensionfoundation/appextensionpoint/error/hostmusthavebundleidentifier.md)
- [AppExtensionPoint.Error.invalidAppExtensionPoint](extensionfoundation/appextensionpoint/error/invalidappextensionpoint.md)
- [AppExtensionPoint.Error.unspecifiedAppExtensionPointName](extensionfoundation/appextensionpoint/error/unspecifiedappextensionpointname.md)

## Relationships

### Conforms To

- [Error](swift/error.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)