vite

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Your Vite app says undefined on Vercel? The variable missed the build

You pasted the key into Vercel or Netlify, the dashboard shows it, and the live app still reads undefined. Vite writes those values into your code when it builds, so the fix is a prefix and a redeploy. Plus the part nobody mentions: everything named VITE_ is public.

Aliteq Team · Oct 16 · 9 min

Flat illustration of a person reaching up to a giant coral refresh arrow beside a large browser window that shows only a broken chain link, on a flat indigo-violet background

Build

Your Lovable app works until you refresh, then Vercel says 404. The one-file fix

The home page loads, the buttons work, and then a refresh or a shared link lands on 404 NOT_FOUND. Your app isn't broken. The host is looking for a file that was never there. Here's why, and the fix for Vercel, Netlify and Cloudflare, from their own docs.

Aliteq Team · Oct 6 · 10 min