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React Component No Longer Renders After Cursor Refactoring
A React component that was previously rendering correctly now fails to display or shows blank/error states after Cursor refactored the component code.
The component may have missing state, incorrect hooks, or broken rendering logic.
Error Messages You Might See
React Hook "useState" is called conditionally
Component is not a function
Unexpected token <
Cannot read property of undefined
Common Causes
- useState or useEffect hook calls moved inside conditional logic (invalid hook rules)
- Required props no longer passed from parent after refactoring
- Component export changed to default export when named was needed
- useCallback/useMemo dependency arrays incomplete or removed
- Removed JSX return statement, leaving undefined return
How to Fix It
Verify hooks are at top level, not in conditionals. Check console for React errors and prop warnings. Ensure component is exported correctly. Add console.log() at render start. Verify all required props have default values or are properly passed.
Real developers can help you.
Vlad Temian
15+ years shipping production infrastructure for startups. Former CTO at qed.builders (acquired by The Sandbox).
Cursor ambassador and agentic tooling builder.
I've scaled systems, automated deployments, and built observability tools for AI coding workflows. I specialize in taking vibe-coded apps from broken prototype to production-ready: fixing Supabase auth/RLS, Stripe integrations, deployment pipelines, and cleaning up AI-generated spaghetti.
I build tools in this space (agentprobe, claudebin, micode) and understand both sides: how AI generates code and why it breaks.
https://blog.vtemian.com/
MFox
Full-stack professional senior engineer (15+years). Extensive experience in software development, qa, and IP networking.
David Olverson
Solo dev shipping production apps with AI-assisted development. I specialize in rescuing broken Lovable/Bolt/Cursor builds and taking them to production. 10+ apps shipped including SaaS CRMs, gaming platforms, real estate tools, and Discord bots. Stack: Next.js 16, TypeScript, Tailwind CSS, FastAPI, PostgreSQL, Prisma. I use Claude Code with 50+ custom skills for rapid delivery. Average turnaround: 2-4 weeks from broken prototype to production.
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I build and fix web apps across Next.js, Node.js, and DBs.
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I am a Strategic Engineering Leader with over 8 years of experience building high-availability enterprise systems and scaling high-performing technical teams. My focus is on bridging the gap between complex technology and business growth.
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Mehdi Ben Haddou
- Founder of Chessigma (1M+ users) & many small projects
- ex Founding Engineer @Uplane (YC F25)
- ex Software Engineer @Amazon and @Booking.com
PawelPloszaj
I'm fronted developer with 10+ years of experience with big projects. I have small backend background too
hanson1014
Full-stack developer experienced in fixing and deploying AI-generated apps from Lovable, Bolt.new, Cursor, and Replit. I specialize in debugging Supabase integration issues (auth flows, RLS policies, database connections), fixing broken deployments, resolving routing/blank screen problems, and cleaning up messy React/Vite codebases. I also build production apps with the Claude API and have shipped a Mac desktop dev tool (Nexterm from scratch. Based in Hong Kong, fast turnaround.
Yovel Cohen
I got a lot of experience in building Long-horizon AI Agents in production, Backend apps that scale to millions of users and frontend knowledge as well.
Bastien Labelle
Full stack dev w/ 20+ years of experience
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
What are React Hook rules?
Call hooks at top level, not in conditionals. Only call hooks from React functions. Use ESLint plugin to catch violations.
How do I debug React rendering?
Use React DevTools browser extension. Check console for warnings. Add console.log in render.