Deployment Timeout on Replit
Deployment hangs and times out before completion. Build or startup phase exceeds Replit's time limit.
Large dependencies, slow network, or inefficient startup sequences cause timeouts.
Error Messages You Might See
Common Causes
- First-time Nix environment download very slow
- Gradle/Maven downloading many dependencies (no cache)
- Large application startup initialization
- Database migrations take too long
- Network latency downloading from slow mirror
How to Fix It
For Gradle, use './gradlew build --no-daemon' to avoid daemon overhead. Add gradle cache to speed rebuilds. Move database migrations outside of startup (pre-deploy step). Defer non-critical initialization. Test build locally before deploying. Use Replit's cache feature for dependencies.
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Get HelpFrequently Asked Questions
Can I increase the deployment timeout?
Limited control on free tier. Optimize build speed instead - use Gradle cache and skip unnecessary tasks
Why is first deploy slow?
Replit downloads the entire Nix environment on first use. Subsequent deploys are faster