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No Open Port Found

errors/no-open-port-found.md

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Original Source

No Open Port Found

Why This Error Occurred

Your application code exited or timed out before binding to a port number.

Possible Ways to Fix It

  • For Node.js deployments, a call to Server#listen() might be missing.
  • For Docker deployments, there might be a mismatch from what the EXPOSE directive specifies compared to what your application binds to.