Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're seeing error: externally-managed-environment when trying to pip ...

Docker Build Context Canceled: Fix .dockerignore Mistakes
You're running docker build and after a long wait you see: context cance...

Fix Windows 11 Setup Stuck at 99%
You're installing Windows 11 and the progress bar hangs at 99% for a long time. This is a kno...

Fix npm run build Failure from Missing Env Variables
You run npm run build and get an error like Error: Missing required environmen...

Fix 'Python' Command Not Found in VS Code Terminal on Windows
When you open the VS Code terminal on Windows and type python, you might see &...

Fix Nginx 502 Bad Gateway in Docker Alpine
You have an Nginx container running on Alpine Linux, and it returns a 502 Bad Gateway. This usual...