Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You install or update a Chrome extension, but it refuses to load. Instead, you see a Perm...

Fix ERR_NAME_NOT_RESOLVED on Windows 10
Seeing ERR_NAME_NOT_RESOLVED in Chrome on Windows 10 means your browser can'...

How to Enable Chrome Extensions That Aren't Loading
You open Chrome and see a grayed-out extension icon. Clicking 'Enable' does nothing, or t...

Fix VS Code Terminal Not Opening on Windows 10
When you press Ctrl+` or click the Terminal panel in VS Code and nothing happens, it's usuall...

Fix 'Python' Command Not Found in Windows 10
When you type python in Command Prompt and see 'python' is not recogni...

Fix Nginx Upstream Connection Refused Timeout Error When Nginx returns 502 Bad Gateway or logs upstream connection refused timeout...