Local build Vite error: Entry module "@astrojs/netlify/ssr-function.js" cannot be external

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I’m using AstroJS with the Netlify adapter. Just today, though npm run dev works, I’m getting this error during local build:

21:22:50 [build] Building hybrid entrypoints…
21:22:50 [ERROR] [vite] x Build failed in 17ms
Entry module “@astrojs/netlify/ssr-function.js” cannot be external.

I couldn’t find the problem, so I tried building a previous version of my code and am getting this error where I didn’t in the past. No package versions have changed, so I’m not sure what could be happening.

Here is package.json

{
    ...
    "dependencies": {
    "@astrojs/alpinejs": "^0.4.0",
    "@astrojs/check": "^0.9.2",
    "@astrojs/netlify": "^5.5.0",
    "@astrojs/react": "^3.6.2",
    "@astrojs/sitemap": "^3.1.6",
    "@astrojs/tailwind": "^5.1.0",
    "@iconify-json/fluent-emoji-high-contrast": "^1.1.15",
    "@iconify-json/simple-icons": "^1.1.107",
    "@portabletext/to-html": "^2.0.13",
    "@portabletext/types": "^2.0.13",
    "@sanity/astro": "^3.1.4",
    "@sanity/client": "^6.21.0",
    "@sanity/types": "^3.50.0",
    "@sanity/visual-editing": "^2.1.6",
    "@types/alpinejs": "^3.13.10",
    "@types/react": "^18.3.3",
    "@types/react-dom": "^18.3.0",
    "alpinejs": "^3.14.1",
    "astro": "^4.13.3",
    "astro-navbar": "^2.3.2",
    "glob": "^11.0.0",
    "netlify-cli": "^17.34.0",
    "react": "^18.3.1",
    "react-dom": "^18.3.1",
    "react-google-reviews": "^1.1.1",
    "sanity": "^3.50.0",
    "tailwindcss": "^3.4.3",
    "typescript": "^5.4.3"
  },
  "devDependencies": {
    "@iconify/tailwind": "^1.1.1",
    "accessible-astro-components": "^2.3.6"
  }
}

and astro.config.mjs

import { defineConfig } from 'astro/config';
import tailwind from '@astrojs/tailwind';
import sitemap from "@astrojs/sitemap";
import netlify from '@astrojs/netlify';
import sanity from "@sanity/astro";
import alpinejs from "@astrojs/alpinejs";
import react from "@astrojs/react";

// https://astro.build/config
export default defineConfig({
  trailingSlash: 'ignore',
  site: '...',
  integrations: [tailwind(), alpinejs(), sitemap({
    filter: page => page !== '...',
  }), sanity({
    projectId: '...',
    dataset: 'staging',
    useCdn: true,
    apiVersion: "2024-07-13",
  }), react()],
  redirects: {
      ...
  },
  output: 'hybrid',
  base: '.',
  adapter: netlify()
});

If you have any ideas of what I should check, please let me know.

Thanks in advance!

2

@doontoon I’ve no idea, but I did a quick Google and this recent and ongoing discussion appears related:

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