@empathyco/x-components
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Empathy X Components
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[Home](./index.md) > [@empathyco/x-components](./x-components.md) > [FetchAndSaveHooks](./x-components.fetchandsavehooks.md) > [onError](./x-components.fetchandsavehooks.onerror.md)
## FetchAndSaveHooks.onError() method
Asynchronous callback executed when either the [FetchAndSaveHooks.fetch()](./x-components.fetchandsavehooks.fetch.md) or [FetchAndSaveHooks.onSuccess()](./x-components.fetchandsavehooks.onsuccess.md) methods fail.
**Signature:**
```typescript
onError?(error: unknown): void;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| error | unknown | The error that triggered this callback. |
**Returns:**
void