Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you've seen EACCES: permission denied when running npm install -g

Checklist for Pushing Large Files with Git
You've likely hit this: you try to push a commit, and Git rejects it because a file is too la...

Resolving Python Dependency Conflicts in pyproject.toml
You've updated a dependency in pyproject.toml, and now pip install ...

Fix Bluetooth Device Not Detected on Windows 11
You try to pair a Bluetooth mouse, keyboard, or headphones, but Windows 11 doesn't see the de...

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...

Fix Nginx Permission Denied on Socket File
When Nginx throws a "permission denied" error for a socket file, the web server can't...