Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You set a breakpoint in your Express route handler, start debugging, and the breakpoint is never ...

You uninstalled a Windows 11 update to fix another issue, but now you're stuck with a blue sc...

You're typing code in VS Code, expecting autocomplete suggestions, but nothing appears. This ...

If you're seeing a build error like Module build failed: Error: Node Sass does not yet ...

Fix Git index.lock File Exists Permission Denied Error
You're in the middle of a Git operation and suddenly you see:
fatal: Unable to ...

Fix npm run build Failed After Git Pull
You pulled the latest code from Git, ran npm run build, and got errors. This is a co...