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Fix 'Permission Denied' Error When Saving VS Code settings.json - Fix VS Code IntelliSense Not Working in WSL-Troubleshooting Cloudflare 521 Error After DNS Change

2026-07-28 15:58:49developer-tools
Fix 'Permission Denied' Error When Saving VS Code settings.json - Fix VS Code IntelliSense Not Working in WSL-Troubleshooting Cloudflare 521 Error After DNS Change

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.