Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

View list

Fix npm run build Failed After Git Pull

You pulled the latest code from Git, ran npm run build, and got errors. This is a co...

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

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

Fix ERR_NAME_NOT_RESOLVED in Chrome: Proxy Settings Guide

If you see ERR_NAME_NOT_RESOLVED in Chrome, it usually means the browser can'...

Windows 11 Update Stuck at 0%: Permission Denied Fix

If your Windows 11 update is stuck at 0% with a "permission denied" message, the installe...

Fixing 'git rebase index.lock file exists' Error

When running git rebase, you may see an error like fatal: Unable to create ...

Fix 'pip externally managed environment' Error in Python 3.12
If you're using Python 3.12 on a modern Linux distribution (like Fedora 38+, Ubuntu 23.04+, o...