Checklists for software errors, setup, and tool workflows.

How to Fix Git Detached HEAD Error

You run git status and see "HEAD detached at" followed by a commit hash. Thi...

Taskbar Icons Missing But Taskbar Visible: Fixes

You see the taskbar at the bottom of your screen, but the icons—like the Start button, search bar...

Cloudflare DNS Propagation Stuck: How to Fix

You updated a DNS record in Cloudflare hours or even days ago, but the change still isn't sho...

Fixing Nginx 502 Bad Gateway in Docker Networks

You have an Nginx container proxying requests to another container (like a PHP-FPM or Node app), ...

VSCode IntelliSense Not Working for JavaScript: Fixes

You open a JavaScript file in VSCode, but IntelliSense is silent — no autocompletions, no suggest...

Fix npm ERR! enoent ENOENT: package.json Not Found in node_modules

You run npm install or npm start and get something like:

...