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Fix Docker Compose 'port 8080 already allocated' Error - Troubleshoot VS Code Terminal and Node.js Issues-Resolve 521 Web Server Down with Firewall Changes

Updated 2026-07-28 13:00:45macos-help
Fix Docker Compose 'port 8080 already allocated' Error - Troubleshoot VS Code Terminal and Node.js Issues-Resolve 521 Web Server Down with Firewall Changes
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