Replit: “process.env.MY_KEY is undefined on Replit”

What it means

The secret isn't added in the Secrets tab, or the deployment doesn't have it.

How to fix it

Add the key in Secrets (and in Deployment secrets), then restart.

Paste this into Replit

Stop retrying previous fixes. I'm getting this error: "process.env.MY_KEY is undefined on Replit". Likely cause: The secret isn't added in the Secrets tab, or the deployment doesn't have it. Before editing, show me the relevant files and confirm the root cause. Then: Add the key in Secrets (and in Deployment secrets), then restart. Change only what's necessary, don't delete working code, don't add new libraries unless required, and tell me exactly what you changed and how to verify it.