Bolt deployment

Blank Page After Deploy to Vercel/Netlify

Your app works perfectly in development but shows a blank white page after deploying to Vercel or Netlify. No errors in the browser console, just whitespace.

The deployment log shows 'Build succeeded' but the page won't render anything.

Error Messages You Might See

Build output exceeded maximum size Error during Next.js build Cannot find module '@/components' Hydration mismatch between server and client
Build output exceeded maximum sizeError during Next.js buildCannot find module '@/components'Hydration mismatch between server and client

Common Causes

  1. Build fails silently but deploy continues - check build logs carefully
  2. Environment variables missing in deployment platform
  3. Node version incompatibility between local and deployment
  4. CSS/images not bundled properly in build
  5. JavaScript runtime error in root component during hydration

How to Fix It

Check full build logs in Vercel/Netlify deployment: look for warnings and errors

Add environment variables in deployment platform settings that exist in local .env.local

Test production build locally: npm run build && npm run start

Check browser DevTools Network tab - are CSS and JS files loading?

Look for hydration mismatches in console warnings

Real developers can help you.

Matt Butler Matt Butler Software Engineer @ AWS AUXLE AUXLE I am a Full Stack Developer experienced in building Websites, Web apps and Cross Platform Mobile Apps for Startups and Companies. Basel Issmail Basel Issmail ’m a Senior Full-Stack Developer and Tech Lead with experience designing and building scalable web platforms. I work across the full development lifecycle, from translating business requirements into technical architecture to delivering reliable production systems. My work focuses on modern web technologies, including TypeScript, Angular, Node.js, and cloud-based architectures. I enjoy solving complex technical problems and helping teams turn product ideas and prototypes into working platforms that can grow and scale. In addition to development, I often collaborate closely with product managers, business analysts, designers, and QA teams to ensure that solutions align with both technical and business goals. I enjoy working with startups and product teams where I can contribute both as a hands-on engineer and as a technical partner in designing and delivering impactful software. Stanislav Prigodich Stanislav Prigodich 15+ years building iOS and web apps at startups and enterprise companies. I want to use that experience to help builders ship real products - when something breaks, I'm here to fix it. Prakash Prajapati Prakash Prajapati I’m a Senior Python Developer specializing in building secure, scalable, and highly available systems. I work primarily with Python, Django, FastAPI, Docker, PostgreSQL, and modern AI tooling such as PydanticAI, focusing on clean architecture, strong design principles, and reliable DevOps practices. I enjoy solving complex engineering problems and designing systems that are maintainable, resilient, and built to scale. Bastien Labelle Bastien Labelle Full stack dev w/ 20+ years of experience Jacek Rozanski Jacek Rozanski Senior PHP/Symfony developer and DevOps engineer with 20+ years of professional experience, running opcode.pl (web development agency, est. 2004). Day job: I'm the sole backend developer at merketing company where I own and maintain 11 PHP/Symfony microservices on AWS (ECS Fargate, RDS, S3, CloudFront), handle the full CI/CD pipeline (Bitbucket Pipelines, Docker), and manage monitoring with Sentry and CloudWatch. These services handle high request volumes in production every month. What I bring to AI-built apps: - I audit and fix security issues (OWASP methodology), performance bottlenecks, and architectural problems in codebases generated by Cursor, Claude Code, Lovable, Bolt, and v0 - I refactor AI-generated prototypes into production-grade applications with proper error handling, testing, and clean architecture (SOLID, DDD, hexagonal architecture) - I set up the infrastructure AI tools don't touch: AWS hosting, CI/CD pipelines, automated deployments, database optimization, monitoring, and alerting - I integrate external services: payment providers, email systems, partner APIs, SSO/auth Tech stack: PHP 8.x, Symfony, React, Next.js, PostgreSQL, MySQL, Docker, AWS (ECS, RDS, S3, SQS/SNS, CloudFront), Terraform, Supabase. I also use AI tools daily (Claude Code, Cursor) in my own workflow, so I understand both the strengths and the gaps in AI-generated code. Based in Poland (CET timezone). Available for async work and calls during EU/US business hours. Antriksh Narang Antriksh Narang 5 years+ Experienced Dev (Specially in Web Development), can help in python, javascript, react, next.js and full stack web dev technologies. MFox MFox Full-stack professional senior engineer (15+years). Extensive experience in software development, qa, and IP networking. Costea Adrian Costea Adrian Embedded Engineer specilizing in perception systems. Latest project was a adas camera calibration system.

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Frequently Asked Questions

How do I see detailed build errors in Vercel?

Go to Deployments > [deployment] > Logs. Check both Build and Runtime logs

Why would it work locally but fail on deploy?

Missing env vars, different Node versions, or unsupported packages in serverless environment

How do I test production build locally?

npm run build then npm run start, then visit localhost:3000

Related Bolt Issues

Can't fix it yourself?
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