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 &#...

How to Fix Git Detached HEAD and Checkout a Branch

You're working in a Git repository, make some commits, and then realize you're in a '...

VS Code Debugger Not Stopping at Breakpoints on Windows: Fixes

You set breakpoints in VS Code, start debugging, and the code runs right past them. This is a com...

Fix npm run build Failed on Windows: Common Causes and Solutions

When you run npm run build on Windows and it fails, the error message can be cryptic...

Docker Desktop Engine Not Starting After Reboot: Fixes

You restart your machine, launch Docker Desktop, and the engine stays stuck at “Starting” or show...

Taskbar Icons Missing but Programs Running – Fix Guide

You start your computer, launch your usual apps, and the programs are running—you can see them in...