How to Fix a Detached HEAD in Git Using SourceTree - Fix 'npm install' Permission Denied When Using Yarn-Docker Breaks VS Code Terminal: Troubleshooting

Updated 2026-07-28 12:40:51security-tools
How to Fix a Detached HEAD in Git Using SourceTree - Fix 'npm install' Permission Denied When Using Yarn-Docker Breaks VS Code Terminal: Troubleshooting
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.