# 13338: Gather: Invalid actionOnEmptyResult value

Log Type: APPLICATION

Log Level: ERROR

## Description

This error occurs when `<Gather>` receives an invalid or empty `actionOnEmptyResult` value. Set `actionOnEmptyResult` to `true` or `false`; the default is `false`.

### Possible causes

* `actionOnEmptyResult` is missing from the `<Gather>` attributes.
* `actionOnEmptyResult` is set to a value other than `true` or `false`.

### Possible solutions

* Set `actionOnEmptyResult` to `true` or `false` in your `<Gather>` verb.
* Use `true` when you want `<Gather>` to send a webhook even if the caller provides no input.
* Leave `actionOnEmptyResult` at its default `false` value when you want the call flow to continue to the next TwiML instruction after an empty gather.

#### Additional resources

* [TwiML Voice: `<Gather>`](/docs/voice/twiml/gather)