# @nhost/nextjs 1.13.22: "Can't find variable: React" after upgrade
## What was going on
Upgrading @nhost/nextjs from 1.13.21 to 1.13.22 produced `ReferenceError: Can't find variable: React` in Next.js apps. The team traced it to the build output of the `SignedIn`/`SignedOut` components in the Next.js package, which suddenly emitted `React.createElement(...)` without importing React. A fixed build was released in @nhost/nextjs 1.13.25.
## The fix that worked
Upgrade to @nhost/nextjs 1.13.25 or later — the package build emitted React.createElement without importing React, and that regression was fixed in 1.13.25. If you must stay on 1.13.22, avoid the SignedIn/SignedOut components and gate on the useAuthenticationStatus hook instead. Source: https://github.com/nhost/nhost/issues/1914
## Where this came from
https://github.com/nhost/nhost/issues/1914