2 Debugging Guides
deployment-debugging
Complete troubleshooting guides for deployment-debugging. Step-by-step solutions for common errors and deployment issues.
Your React app works perfectly locally. Navigation works. But after deployment, refreshing a page suddenly returns 404 Not Found. This is not a code bug; it is a server configuration issue. Priority
Direct URL Works Locally But Returns 404 After Deployment
The ultimate fix for React Router reload issues on Vercel, Firebase, and Netlify.
ReactViteFirebaseVercel
6 min read•Updated 5/21/2026
Presentation tomorrow? Deployment failing on Vercel? Here is the exact debugging process used to recover production builds fast. Priority
How to Fix Vercel Build Failed: npm run build exited with 1
Production-grade debugging workflow for Next.js deployment failures.
Next.jsVercelDeploymentTypeScript
4 min read•Updated 5/6/2026
Can't Find Your deployment-debugging Error?
Send me your exact error message and I'll help you debug it directly.
Describe Your Issue on WhatsApp