puppeteer/website/versioned_docs/version-21.1.0/api/puppeteer.errors.md

---
sidebar_label: errors
---

# errors variable

> Warning: This API is now obsolete.
>
> Import error classes directly.
>
> Puppeteer methods might throw errors if they are unable to fulfill a request. For example, `page.waitForSelector(selector[, options])` might fail if the selector doesn't match any nodes during the given timeframe.
>
> For certain types of errors Puppeteer uses specific error classes. These classes are available via `puppeteer.errors`.

#### Signature:

```typescript
errors: PuppeteerErrors;
```

## Example

An example of handling a timeout error:

```ts
try {
  await page.waitForSelector('.foo');
} catch (e) {
  if (e instanceof TimeoutError) {
    // Do something if this is a timeout.
  }
}
```