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Fix Docker Build Context Canceled in VS Code - Git Detached HEAD: Practical Checklist and Fixes-Fix 'port already allocated' for Nginx in Docker Compose

Updated 2026-07-28 13:28:01developer-tools
Fix Docker Build Context Canceled in VS Code - Git Detached HEAD: Practical Checklist and Fixes-Fix 'port already allocated' for Nginx in Docker Compose
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.