Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You run pip install and see a wall of text about DependencyConflict or ...

You open a file or run a task in VS Code and see Error: EACCES: permission denied, open ...

Fix VS Code 'Cannot Save File: Permission Denied' on Mac
You're editing a file in VS Code on your Mac, hit save, and get: 'Failed to save:...

Fix 'nginx: configuration test failed unexpected end of file'
When running nginx -t or nginx -t -c /path/to/nginx.conf, you might see...

Fix Git 'index.lock' File Exists Error in SourceTree
If you use SourceTree and see an error message like fatal: Unable to create 'path/to/.g...

Python Command Not Found in Windows Terminal: Fixes
When you type python or python3 in Windows Command Prompt or PowerShell...