Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You try to merge two Git branches and get this error:

fatal: refusing to merge unre...

Chrome Won't Open After Update: Step-by-Step Fix
You updated Chrome, and now it won't open—no window, no error, just nothing. This is a common...

Permanently Allow Unrelated Histories in Git Merge
If you've ever tried to merge two Git branches that don't share a common ancestor, you...

Setting Python Requests Timeout Per Request: Practical Guide
When a Python script using the requests library hangs indefinitely on a slow API, yo...

Remote Desktop Connection Fails: RDP Port Not Open
You try to connect via Remote Desktop, but the client says it can't connect. One of the most ...

Fix Git Stash Error: index.lock File Exists
You run git stash and see: fatal: Unable to create 'path/.git/index.lock&#...