---
title: failureReason
framework: arkit
role: symbol
role_heading: Instance Property
path: arkit/arkitsession/error/failurereason
---

# failureReason

A localized message that describes why the error occurred.

## Declaration

```swift
let failureReason: String?
```

## See Also

### Providing recovery suggestions

- [recoverySuggestion](arkit/arkitsession/error/recoverysuggestion.md)