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 Firefox Secure Connection Failed Error Due to Antivirus

You try to visit a website in Firefox and see a message like “Secure Connection Failed” or “PR_CO...

Chrome Sync Stuck on Waiting for Sync: Practical Fixes

You open Chrome, click the profile icon, and see the never-ending 'Waiting for sync' mess...

Fix VSCode Breakpoints Not Hit in launch.json

You set a breakpoint in Visual Studio Code, start debugging with a launch.json confi...

Renew an Expired Cloudflare Origin Certificate: Step-by-Step

If your Cloudflare origin certificate has expired, visitors will see SSL errors and your server m...

VSCode Integrated Terminal Not Showing: Fixes to Try

You open the integrated terminal in Visual Studio Code using Ctrl+` (or Cmd+`<...