Bolt deployment

ESLint Error Blocking Build - Build Fails on Lint

Your build fails because of ESLint warnings/errors. Code is correct but linter complains and build exits.

Works locally with warnings but deployment fails on lint.

Error Messages You Might See

Build failed - ESLint error Error: 'variable' is defined but never used Error: Missing 'key' prop Error: Rules of Hooks violation
Build failed - ESLint errorError: 'variable' is defined but never usedError: Missing 'key' propError: Rules of Hooks violation

Common Causes

  1. ESLint strict mode enabled in build (treatWarningsAsErrors)
  2. Unused variables or imports flagged as errors
  3. Rules too strict for development environment
  4. ESLint config different between local and deployment
  5. Missing eslintrc file in deployment environment

How to Fix It

Check next.config.js: eslint setting controls build behavior

Disable during development: eslint: { ignoreDuringBuilds: true }

Fix actual issues: remove unused imports, follow rule suggestions

Override specific rules in .eslintrc if they're too strict

Or: add // eslint-disable-next-line above problematic lines as last resort

Real developers can help you.

Vlad Temian 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/ Daniel Vázquez Daniel Vázquez Software Engineer with over 10 years of experience on Startups, Government, big tech industry & consulting. Caio Rodrigues Caio Rodrigues I'm a full-stack developer focused on building practical and scalable web applications. My main experience is with **React, TypeScript, and modern frontend architectures**, where I prioritize clean code, component reusability, and maintainable project structures. I have strong experience working with **dynamic forms, state management (Redux / React Hook Form), and complex data-driven interfaces**. I enjoy solving real-world problems by turning ideas into reliable software that companies can actually use in their daily operations. Beyond coding, I care about **software quality and architecture**, following best practices for componentization, code organization, and performance optimization. I'm also comfortable working across the stack when needed, integrating APIs, handling business logic, and helping transform prototypes into production-ready systems. My goal is always to deliver solutions that are **simple, efficient, and genuinely useful for the people using them.** Franck Plazanet Franck Plazanet 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. Core Expertise: 🚀 Leadership: Managing and coaching teams of 15+ engineers, fostering a culture of accountability and continuous improvement. 🏗️ Architecture: Enterprise Core Systems, Multi-system Integration (ERP/API/ETL), and Core Database Structure. ☁️ Cloud & Scale: AWS Expert; architected systems handling 10B+ monthly requests and managing 100k+ SKUs. 📈 Business Impact: Aligning tech strategy with P&L goals to drive $70k+ in monthly recurring revenue. I thrive on "out-of-the-box" thinking to solve complex technical bottlenecks and am always looking for ways to use automation to improve business productivity. rayush33 rayush33 JavaScript (React.js, React Native, Node.js) Developer with demonstrated industry experience of 4+ years, actively looking for opportunities to hone my skills as well as help small-scale business owners with solutions to technical problems Mehdi Ben Haddou Mehdi Ben Haddou - Founder of Chessigma (1M+ users) & many small projects - ex Founding Engineer @Uplane (YC F25) - ex Software Engineer @Amazon and @Booking.com Matt Butler Matt Butler Software Engineer @ AWS ISHANTDEEP SINGH ISHANTDEEP SINGH Senior Software Engineer with 7+ years of experience in React, JavaScript, TypeScript, Next.js, and Node.js. I’ve also worked as a tech lead for startups, owning end-to-end technical execution including architecture, development, scaling, and delivery. I bring a strong mix of hands-on coding, product thinking, and technical leadership, and I’m comfortable building products from scratch as well as improving and scaling existing systems. David Olverson 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. MFox MFox Full-stack professional senior engineer (15+years). Extensive experience in software development, qa, and IP networking.

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Frequently Asked Questions

Should I disable ESLint for build?

No, fix the actual issues. ESLint catches real bugs. ignoreDuringBuilds is temporary workaround

What's // eslint-disable-next-line for?

Suppresses single rule for one line. Use sparingly - better to fix actual issue

How do I customize ESLint rules?

Edit .eslintrc file. Set rules to 'off', 'warn', or 'error'. Or extend shared configs

Related Bolt Issues

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