[net](../../index.md) / [com.drake.net](../index.md) / [com.yanzhenjie.kalle.KalleConfig.Builder](index.md) / [onError](./on-error.md)

# onError

`fun Builder.onError(block: `[`Throwable`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-throwable/index.html)`.() -> `[`Unit`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html)`): `[`Unit`](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html)

该函数指定某些Observer的onError中的默认错误信息处理

**See Also**

[NetConfig.onError](../-net-config/on-error.md)