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BUILD notes

Puppeteer / Playwright Missing Browser Binary

If you get an error like:

Error: browserType.launch: Failed to launch chromium because executable doesn't exist at ~/.cache/puppeteer/chrome/...

Try one of the following steps:

  • Reinstall Puppeteer's test browser:
node node_modules/puppeteer/install.mjs
  • Or re-run npm install to trigger postinstall hooks:
npm ci
  • If you're using Playwright, install browsers:
npx playwright install

  • If you prefer to use your system Chrome, make sure it's installed and available at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome (macOS). The plugin gatsby-remark-mermaid supports passing executablePath to point to that path.

  • If you still have problems, clear Puppeteer's cache and re-run the install:

rm -rf ~/.cache/puppeteer && node node_modules/puppeteer/install.mjs

I added a fallback check to gatsby-config.js so it will use system Chrome/Chromium if the Puppeteer binary isn't present.