---
title: NIError
framework: nearbyinteraction
role: symbol
role_heading: Structure
path: nearbyinteraction/nierror
---

# NIError

An error Nearby Interaction reports.

## Declaration

```swift
struct NIError
```

## Overview

Overview Implement the session(_:didInvalidateWith:) callback to check for errors.

## Topics

### Identifying an error cause

- [NIError.Code](nearbyinteraction/nierror/code.md)
- [activeSessionsLimitExceeded](nearbyinteraction/nierror/activesessionslimitexceeded.md)
- [invalidConfiguration](nearbyinteraction/nierror/invalidconfiguration.md)
- [resourceUsageTimeout](nearbyinteraction/nierror/resourceusagetimeout.md)
- [sessionFailed](nearbyinteraction/nierror/sessionfailed.md)
- [unsupportedPlatform](nearbyinteraction/nierror/unsupportedplatform.md)
- [userDidNotAllow](nearbyinteraction/nierror/userdidnotallow.md)
- [invalidARConfiguration](nearbyinteraction/nierror/invalidarconfiguration.md)
- [activeExtendedDistanceSessionsLimitExceeded](nearbyinteraction/nierror/activeextendeddistancesessionslimitexceeded.md)
- [incompatiblePeerDevice](nearbyinteraction/nierror/incompatiblepeerdevice.md)
- [accessoryPeerDeviceUnavailable](nearbyinteraction/nierror/accessorypeerdeviceunavailable.md)

### Type Properties

- [errorDomain](nearbyinteraction/nierror/errordomain.md)

## Relationships

### Conforms To

- [CustomNSError](foundation/customnserror.md)
- [Equatable](swift/equatable.md)
- [Error](swift/error.md)
- [Hashable](swift/hashable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Errors

- [NIError.Code](nearbyinteraction/nierror/code.md)
- [NIErrorDomain](nearbyinteraction/nierrordomain.md)