I will fix nextjs build errors and react bugs in your existing app


About this gig
Is your Next.js build failing, or is a React bug blocking your launch? Send me the error and I'll find the cause and fix it in your existing code.
I'm a full-stack developer in Korea. I build and maintain my own Next.js apps with TypeScript, PostgreSQL and Prisma, including a multi-branch operations ERP, a commerce and CRM system (Next.js + NestJS), and an inventory and finance ERP. I've deployed on Vercel, AWS, Cloudflare and Docker, so I'm used to errors that only show up at build or deploy time.
Typical fixes:
- "Failed to compile" / TypeScript type errors
- Build works locally but fails on Vercel
- Hydration errors, broken routes, API route bugs
- Prisma / PostgreSQL connection and query errors
- Broken forms, login or environment variables
How I work:
1. You share the repo (invite or zip) and the error
2. I reproduce it and tell you the cause before changing anything
3. I fix it, test the build, and push with clear commits
4. You get a short note: what broke, what changed, and why
Please message me before ordering with the error text or a screenshot, so I can check the scope and tell you honestly if it fits the package.
Get to know Noah Lee
Inventory and daily sales web apps
- FromSouth Korea
- Member sinceApr 2024
Languages
English, Korean
My Portfolio
Other Software Development Services I Offer
FAQ
Do you need access to my repo?
Yes, a GitHub/GitLab invite (read/write on one repo is enough) or a zip. Please don't send passwords; use a .env.example with dummy values.
What if you can't fix it?
I'll tell you as soon as I've reproduced it, and before the delivery date. If it isn't fixable within the package, we can cancel through Fiverr or agree a custom offer.
Which versions do you work with?
Next.js App Router and Pages Router, React with TypeScript or JavaScript, Node.js backends, Prisma with PostgreSQL.
Can you deploy the fix?
Premium includes deployment to Vercel or your server. On Basic/Standard I push the fix to your repo and you deploy.
My project was built with an AI tool. Is that OK?
Yes. Send the repo and the error; I'll explain what I changed in plain English.

