Fix: Cursor Uses the Wrong Framework or Syntax
Quick Answer
Create a .cursorrules file in your project root: 'This is a Next.js 14+ app using the App Router (not Pages Router). Use TypeScript, functional components with hooks, ES modules, and Tailwind CSS. Server components by default.'
Quick Fix Summary
| Issue | Wrong framework or syntax |
| Fastest fix | Create .cursorrules immediately |
| Use this page if | Cursor generates React class components instead of functional components |
Symptoms
- !Cursor generates React class components instead of functional components
- !AI uses pages/ router when you have app/ router
- !Generated code uses CommonJS require() instead of ES modules import
- !Cursor creates Express routes when you need Next.js API routes
Step-by-Step Fix
Create .cursorrules immediately
Create a file called .cursorrules in your project root with your stack details. Cursor reads this before every response. Example content: 'Next.js 14 App Router, TypeScript strict mode, Tailwind CSS, Supabase, functional components only.'
Specify in every prompt
Until .cursorrules is set up, add 'Use Next.js App Router with TypeScript' to every prompt. Repetition works.
Include an example file
Use @file to show a working component: 'Follow the same pattern as @src/app/page.tsx'. The AI will mimic the framework and syntax it sees.
Correct and regenerate
If Cursor uses the wrong framework, say: 'This is wrong. Rewrite using Next.js App Router (src/app/) not Pages Router (pages/). Use server components.'
Frequently Asked Questions
Your framework (Next.js App Router), language (TypeScript), styling (Tailwind), database (Supabase), and any conventions ('always use server components unless client interaction is needed').
The AI was trained on millions of repos using different frameworks. Without context, it defaults to the most common patterns — which may not match yours.
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