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Fix 'Port Already Allocated' Error in Docker Compose on Mac - How to Fix 502 Bad Gateway in Docker with Nginx-Troubleshooting VS Code PowerShell Terminal Not Starting

Updated 2026-07-28 09:34:16browser-issues
Fix 'Port Already Allocated' Error in Docker Compose on Mac - How to Fix 502 Bad Gateway in Docker with Nginx-Troubleshooting VS Code PowerShell Terminal Not Starting
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.

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