---
title: "PackageManagerProxyError.unimplemented(_:)"
framework: swift-package-manager
role: symbol
role_heading: Case
path: "swift-package-manager/documentation/packageplugin/packagemanagerproxyerror/unimplemented(_:)"
---

# PackageManagerProxyError.unimplemented(_:)

Indicates that the functionality isn’t implemented in the plugin host.

## Declaration

```swift
case unimplemented(_: String)
```

## See Also

### Types of Proxy Errors from Package Manager

- [PackageManagerProxyError.unspecified(_:)](swift-package-manager/documentation/packageplugin/packagemanagerproxyerror/unspecified(_:).md)