Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

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Latest checklists

When a Python script using the requests library hangs indefinitely on a slow API, yo...

You run npm run build and get an error like Error: Cannot find module 'som...

Docker Compose Port Already Allocated: How to Fix
You run docker-compose up and see an error like Error: Port 8080 is already al...

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), ...

Fix Chrome Access Violation Error on Mac
If you see an "access violation" error in Chrome on your Mac, it usually means the browse...

Fix Python venv Not Activating in VS Code Terminal
When you create a Python virtual environment but it doesn't activate in the VS Code terminal,...