Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You run a Gradle build and it fails with No cached version of ... available for offline mod...

How to Fix PuTTY Connection Refused Error
You open PuTTY, enter your server IP or hostname, click Open, and get "Connection refused...

How to View Chrome Browser Log Files for Errors
When Chrome crashes, freezes, or shows cryptic error messages, the browser's own log files often ...

Fix Nginx 404 on All Pages Except Index
If your Nginx server loads the index page but returns 404 on all other pages, the issue is almost...

How to Break a PowerShell Login Loop
If PowerShell keeps opening and closing repeatedly when you log into Windows, you're stuck in a l...

Change Windows Update Port to Fix 'Already Allocated' Error
When you see "port already allocated" during Windows Update, it usually means an...