Next.js 16 + Tailwind v4: 5 traps AI coding assistants keep hitting (and the prompts that fix them)
This story is from 2026-10-19. It is preserved in the archive; the latest stories are on the live feed.
A fresh create-next-app in late 2026 gives you Next.js 16 and Tailwind CSS v4. Most AI coding assistants learned on years of Next 13–15 and Tailwind v3 code. That gap produces the same handful of failures again and again, and they often show up only at npm run build , or only on a laptop set to dar…
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- 2026-10-19 04:08 · DEV Community — AI
Next.js 16 + Tailwind v4: 5 traps AI coding assistants keep hitting (and the prompts that fix them)