Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You run pip install and see errors like “package A requires package B==1.0 but y...

Fix 'Python' Command Not Found on Windows 7
When you type python in Command Prompt on Windows 7 and get 'python' i...

Fix Docker Nginx 502 Bad Gateway with MySQL You have a Dockerized web app behind Nginx, and you're seeing a 502 Bad Gateway error. The ap...

Fix Git Authentication Failed in VS Code on Linux You're working in VS Code on Linux, try to push or pull, and get a popup: "Git authentica...

Fix Git Clone Connection Timed Out on GitHub Enterprise When you run git clone on a GitHub Enterprise repository and see connection ti...

Fix Nginx Redirect Loop in WordPress You visit your WordPress site and get a "redirect loop" or "too many redirects" e...