---
title: NSNetServices Errors
framework: foundation
role: collectionGroup
role_heading: API Collection
path: foundation/nsnetservices-errors
---

# NSNetServices Errors

If an error occurs, the delegate error-handling methods return a dictionary with the following keys.

## Topics

### Constants

- [errorCode](foundation/netservice/errorcode-swift.type.property.md)
- [errorDomain](foundation/netservice/errordomain.md)

## See Also

### Constants

- [NetService.ErrorCode](foundation/netservice/errorcode-swift.enum.md)
- [NetService.Options](foundation/netservice/options.md)