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Environment Variable Not Set on Replit
Your app crashes or behaves incorrectly because environment variables aren't set. Required configuration is missing.
Environment variables must be set in Replit Secrets for app to access them.
Error Messages You Might See
NullPointerException when accessing environment variable
ConfigurationPropertiesBindingPostProcessor
Cannot resolve property
Common Causes
- Variable not added to Replit Secrets
- Variable name mismatch (case sensitivity, typos)
- Variable deleted from Secrets after app deployed
- Accessing wrong environment variable key in code
- Secrets not available during build time
How to Fix It
Open Replit Secrets (lock icon), add variable with exact name your code expects. Restart app to pick up changes. Verify variable exists with echo command in Replit shell. For Spring Boot, use @Value("${VAR_NAME}") or environment properties. Check logs for which variables are loaded on startup.
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Get HelpFrequently Asked Questions
How do I add a Secret on Replit?
Click lock icon, type variable name and value, hit Save
Are Secrets available during build?
No, only at runtime. Don't use Secrets in gradle/pom build configs