Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're seeing fatal: unable to access 'https://...' : Failed to connect ...:...

How to Resolve Git Unrelated Histories Merge Conflict
When you try to merge two branches that have no common commit history, Git refuses with fat...

Fix Git Permission Denied in VS Code Terminal
You're working in VS Code, try to run a Git command in the integrated terminal, and get a ...

Fix Windows Security App Permission Issues
You open Windows Security and see a message like "This app has been blocked for your protecti...

Fix Windows 11 Update Stuck at 0% with Low Disk Space
You're trying to install a Windows 11 update, but it's stuck at 0% for a long time. One f...

Fix npm run build Failed with PostCSS Error
You run npm run build and see a PostCSS error. This often happens after updating pac...