Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When you try to open Jupyter Notebook and see a prompt asking for a token or password, you've lik...

If you see "Windows Security service stopped manually" in Event Viewer or your antivirus reports ...

When you try to run Windows Update and get a 'permission denied' error, it usually means the upda...

When you see ERROR 1045 (28000): Access denied for user 'root'@'localhost', it usual...

You run pip install numpy and get ERROR: Could not find a version that satisfi...

How to Fix Node Version Mismatch Errors
If you've ever run npm install or node app.js and seen a version mismat...