SANBDOX_NOT_LISTENING

The SANDBOX_NOT_LISTENING error occurs when you are trying to access a Sandbox that is not listening on the requested port. This could happen if the port is malconfigured, or the process running on that port has exited.

502

SANDBOX_NOT_LISTENING:

Bad Gateway

I'm encountering an error and reviewing the docs at /flg~eyJhbGciOiJIUzI1NiJ9._f7-_v0.H1pbXxc_pwT_uVOl9HPQTOSEJsJVY_sGnFnlG1GD0mM/docs/errors/SANDBOX_NOT_LISTENING to understand what's happening. Please help me resolve this by: 1. **Suggest the fix**: Analyze my codebase context and propose what needs to be changed to resolve this error 2. **Explain the root cause**: Break down why this error occurred: - What was the code actually doing vs. what it needed to do? - What conditions triggered this specific error? - What misconception or oversight led to this? 3. **Teach the concept**: Help me understand the underlying principle: - Why does this error exist and what is it protecting me from? - What's the correct mental model for this concept? - How does this fit into the broader framework/language design? 4. **Show warning signs**: Help me recognize this pattern in the future: - What should I look out for that might cause this again? - Are there similar mistakes I might make in related scenarios? - What code smells or patterns indicate this issue? 5. **Discuss alternatives**: Explain if there are different valid approaches and their trade-offs My goal is to fix the immediate issue while building lasting understanding so I can avoid and resolve similar errors independently in the future.

To troubleshoot this error, follow these steps:

  1. Verify the configured port: Make sure that the ports field used in Sandbox.create matches the port your application is listening on. Follow the documentation to learn more
  2. Check the Sandbox history: Navigate to the Sandboxes dashboard, select the one you are accessing, and check the history section to see which commands were run and if any errors occurred

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