---
title: readOnlyCharacteristic
framework: homekit
role: symbol
role_heading: Type Property
path: homekit/hmerror/readonlycharacteristic
---

# readOnlyCharacteristic

An attempt to modify a read-only value.

## Declaration

```swift
static var readOnlyCharacteristic: HMError.Code { get }
```

## See Also

### Detecting characteristic errors

- [writeOnlyCharacteristic](homekit/hmerror/writeonlycharacteristic.md)