Replit
deployment
.replit Config File Invalid on Replit
Replit displays config errors or your custom run command doesn't execute. The .replit configuration file has syntax errors or missing required fields.
The .replit file controls how your app builds and runs on Replit.
Error Messages You Might See
Invalid .replit configuration
Failed to parse .replit file
run: command not found
Common Causes
- TOML syntax errors (missing quotes, invalid characters)
- Missing 'run' key for deployment command
- Wrong build tool command (e.g., mvn instead of ./gradlew)
- File encoding issues or line endings
- Incorrect module path for multi-module projects
How to Fix It
Validate .replit TOML syntax using a TOML linter. Ensure 'run' command is correct (./gradlew bootRun for Gradle projects). For Spring Boot, use './gradlew bootRun' or java -jar. Set appropriate working directory if needed. Verify file is saved as plain text with Unix line endings.
Real developers can help you.
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.
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Meïr Ankri
Full-stack developer specializing in React / Next.js / Node.js with 6+ years of experience. I've worked across various sectors including automotive (Reezocar/Société Générale), healthcare (Medical Link SaaS), and e-commerce (Glasman). I build web apps end-to-end, from architecture to production, with a focus on scalability, performance, and code quality. I also mentor junior developers and contribute to technical decisions and code reviews.
Alvin Voo
I’ve watched the tech landscape evolve over the last decade—from the structured days of Java Server Pages to the current "wild west" of Agentic-driven development. While AI can "vibe" a frontend into existence, I specialize in the architecture that keeps it from collapsing.
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Daniel Vázquez
Software Engineer with over 10 years of experience on Startups, Government, big tech industry & consulting.
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Antriksh Narang
5 years+ Experienced Dev (Specially in Web Development), can help in python, javascript, react, next.js and full stack web dev technologies.
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.
Nam Tran
10 years as fullstack developer
Omar Faruk
As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience.
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Get HelpFrequently Asked Questions
What's a basic .replit for Spring Boot?
[build] command = "./gradlew build" [run] command = "java -jar build/libs/app.jar"