[**CameraKit Web SDK v1.15.0**](../README.md)

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[CameraKit Web SDK](../globals.md) / LensExecutionError

# Type Alias: LensExecutionError

> **LensExecutionError**: `NamedError`\<`"LensExecutionError"`\>

This error occurs if a Lens is unable to continue rendering.

If this error occurs, Camera Kit automatically removes the Lens from the session.
It's always a good idea to handle this error and update the user experience accordingly.
For example, you could remove the faulty Lens from your Lens selection UI.

```ts
cameraKitSession.events.addEventListener('error', ({ detail }) => {
  if (detail.error.name === 'LensExecutionError') {
    console.log(`Lens ${detail.lens.name} encountered an error and was removed. Please pick a different lens.`)
  }
})
```