How to Fix the Git index.lock File Exists Error - Resolve Git Fatal Refusing to Merge Unrelated Histories-Fix ERR_NAME_NOT_RESOLVED in Chrome

Updated 2026-07-28 23:46:28browser-issues
How to Fix the Git index.lock File Exists Error - Resolve Git Fatal Refusing to Merge Unrelated Histories-Fix ERR_NAME_NOT_RESOLVED in Chrome
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.