Checklists for software errors, setup, and tool workflows.

Chrome Extensions Not Loading? 7 Fixes to Try

You open Chrome and notice your extensions are missing from the toolbar, or they show up but don&...

Fix Nginx 'upstream connection refused' When Talking to PHP-FPM

You're seeing upstream connection refused in your Nginx error log, and your site...

npm package.json Not Found After npm init

You run npm init, answer the prompts, and then try to install a package or run a scr...

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 'refusing to merge unrelated histories' Error

When you try to merge two Git branches that don't share a common commit history, Git stops wi...

Fix Node.js Heap Out of Memory on Linux Server

If your Node.js application crashes on a Linux server with FATAL ERROR: Ineffective mark-co...