Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You open Windows Security and see a message that real-time protection is turned off or has a conf...

If you see a message like “You are in ‘detached HEAD’ state” in IntelliJ IDEA, it means your work...

You try to merge two branches in Git, and get fatal: refusing to merge unrelated histories<...

Fix 'Permission Denied' in VS Code Terminal
When you open the integrated terminal in VS Code and run a command, you might see permissio...

How to Enable Breakpoints in VS Code
If you've set a breakpoint in Visual Studio Code and it's not being hit, or you're no...

How to Fix Git Push Rejected: Non-Fast-Forward Merge
You run git push and get: ! [rejected] main -> main (non-fast-forward)