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Fix Git 'index.lock' File Exists Error in SourceTree - npm run build Fails After Git Pull: Fixes-External Monitor Black Screen in Chrome Troubleshooting

Updated 2026-07-28 07:07:58macos-help
Fix Git 'index.lock' File Exists Error in SourceTree - npm run build Fails After Git Pull: Fixes-External Monitor Black Screen in Chrome Troubleshooting
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