Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're working with Git on a Mac and see the error fatal: Unable to create '/pat...

How to Fix Git Authentication Failed in VS Code
You're in VS Code, push or pull fails with "Authentication failed"—this is common and...

ERR_NAME_NOT_RESOLVED on Chrome Linux: Fix Guide
You're browsing on Chrome in Linux and suddenly a page won't load, showing ERR_NA...

Fixing VS Code 'Permission Denied' Errors on All Files
If VS Code shows 'permission denied' for every file you try to open or edit, the problem ...

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...

Fix 'npm run build Error Cannot Find Module'
You run npm run build and get an error like Error: Cannot find module 'som...