Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

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Latest checklists

When running Python in Git Bash on Windows, you may see bash: python: command not found

VS Code Git Not Detecting Changes: Step-by-Step Fix
You've edited files in VS Code, but the Source Control panel shows no changes. The git icon m...

How to Fix Git Detached HEAD and Checkout a Branch
You're working in a Git repository, make some commits, and then realize you're in a '...

Fix 'pip install' Permission Denied on Ubuntu
When you run pip install somepackage on Ubuntu and see a Permission denied

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 Python Permission Denied When Running pip install -r requirements.txt
You run pip install -r requirements.txt and get a PermissionError or