I followed this to create a NextJS on pages template but I get this error when deploying.
https://developers.cloudflare.com/pages/framework-guides/nextjs/ssr/get-started/

❯ npx next build --debug
(node:1090629) ExperimentalWarning: CommonJS module /nix/store/cgkpjpl1hspg30dlmv4hhvlhbvik1bn1-nodejs-23.2.0/lib/node_modules/npm/node_modules/debug/src/node.js is loading ES Module /nix/store/cgkpjpl1hspg30dlmv4hhvlhbvik1bn1-nodejs-23.2.0/lib/node_modules/npm/node_modules/supports-color/index.js using require().
Support for loading ES Module in require() is an experimental feature and might change at any time
(Use `node --trace-warnings ...` to show where the warning was created)
   ▲ Next.js 15.1.0

   Creating an optimized production build ...
Failed to compile.

./src/app/page.tsx + 1 modules
Unexpected end of JSON input


> Build failed because of webpack errors