webpack-build-worker-opt-out.mdx
title: Webpack Build Worker automatic opt-out
Why This Error Occurred
The Next.js config contains custom webpack configuration, as a result, the webpack build worker optimization was disabled.
The webpack build worker optimization helps alleviate memory stress during builds and reduce out-of-memory errors although some custom configurations may not be compatible.
Possible Ways to Fix It
Upgrade Next.js to latest (>= 14.1.0) to remove this warning.
npm i next@latest
Rendered from the public repository vercel/next.js on GitHub; content belongs to its authors. Cached for up to an hour.