Checklists for software errors, setup, and tool workflows.

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Fix Git Authentication Failed in VS Code on Mac

If you see "Git authentication failed" when pushing or pulling in VS Code on a Mac, the p...

Fix VS Code Terminal Not Opening with Node

You open VS Code, try to start the integrated terminal, and it either doesn't appear, flashes...

Fix DNS Probe Finished NXDOMAIN After Changing DNS

After updating your DNS settings—perhaps to use Google Public DNS or Cloudflare—you might see the...

Fix VS Code Permission Denied Error on Windows 11

If you see "permission denied" when saving files, running terminals, or using extensions ...

How to Fix npm Install Permission Denied on Mac

If you see EACCES: permission denied when running npm install, it's...