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# TileOverlayErrorEvent

An event object that notifies the developer of an error that occurred while loading tiles.

```
class TileOverlayErrorEvent extends Event
```

## Discussion

[`TileOverlay`](/documentation/MapKitJS/TileOverlay) dispatches a `tile-error` event when an error occurs while loading tiles.

## Topics

### Instance Properties

[`readonly tileOverlay: TileOverlay;`](/documentation/MapKitJS/TileOverlayErrorEvent/tileOverlay)

The tile overlay object that dispatched the tile error event.

[`readonly tileUrl: string;`](/documentation/MapKitJS/TileOverlayErrorEvent/tileUrl)

The URL of the tile that failed to load.

## Relationships

### Inherits From

`Event`

---

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