Fix npm run build Failed with PostCSS Error - Fix 'Git Remote Origin Already Exists' in VS Code-How to Troubleshoot Chrome Sync Errors

Updated 2026-07-28 15:31:05windows-fixes
Fix npm run build Failed with PostCSS Error - Fix 'Git Remote Origin Already Exists' in VS Code-How to Troubleshoot Chrome Sync Errors
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.