Fix Java Spring Boot Deployment Issue on Railway.com (Nixpacks Build Failed)

need a Java Spring Boot developer to help fix a deployment issue on Railway.com. The deployment fails with the error “Nixpacks build failed”, meaning Railway is unable to generate a build plan.

Issue Details:
• Platform: Railway.com
• Error: Nixpacks unable to detect build environment
• Project Type: Java Spring Boot (GitHub-based deployment)
• Possible Causes:
• Incorrect project structure
• demo.zip file in the repo causing conflicts
• Misconfigured railway.json file

What I Need:

✔️ Fix the deployment error and ensure a successful build
✔️ Verify Maven/Gradle setup and correct build structure
✔️ Provide a detailed guide on how the issue was resolved

Skills Required:
• Java Spring Boot
• Railway.com deployment
• Nixpacks & Build Systems
• GitHub CI/CD Integration

Budget & Timeline:
• Budget: Negotiable based on experience
• Timeline: ASAP (preferably within 24-48 hours)