Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You open Chrome and see a sync error code—something like “Sync is paused” or “Error signing in.” ...

If you've ever tried to load a CSV file that's several gigabytes into pandas with p...

Checklist for Nginx Configuration Test Failure
When you run nginx -t and get a failure, the server won't reload or restart. Thi...

Fix Git Merge Conflicts with Deleted Files
You're in the middle of a merge and git stops with a conflict. One side deleted a file, the o...

npm package.json Not Found: Troubleshooting Checklist
When you run npm install or npm start and see package.json not fo...

Fix 'Python' Command Not Found After Reinstall on Windows
You reinstalled Python on Windows, but when you type python in Command Prompt, you g...