npm package.json Not Found: Troubleshooting Checklist - Resolve 'index.lock File Exists' in SourceTree-Chrome Startup Crash Due to Sandboxing: How to Fix

Updated 2026-07-28 13:11:02windows-fixes
npm package.json Not Found: Troubleshooting Checklist - Resolve 'index.lock File Exists' in SourceTree-Chrome Startup Crash Due to Sandboxing: How to Fix
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.