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[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [Protocol](./puppeteer.protocol.md) &gt; [Page](./puppeteer.protocol.page.md) &gt; [AppManifestError](./puppeteer.protocol.page.appmanifesterror.md) &gt; [critical](./puppeteer.protocol.page.appmanifesterror.critical.md)

## Protocol.Page.AppManifestError.critical property

If criticial, this is a non-recoverable parse error.

<b>Signature:</b>

```typescript
critical: integer;
```