Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You click the Windows Security icon or try to open it from Settings, but nothing happens. The app...

You're working in VS Code on a Mac, and when you try to run a command in the integrated termi...

You run npm install and get a wall of red: ENOENT: no such file or directory, ...

Nginx Permission Denied After Restart: Fixes That Work
After restarting nginx, you might see errors like connect() to unix:/var/run/php-fpm.sock f...

Fix Chrome Status Access Violation in Safe Mode
If you see a 'status access violation' error in Chrome while in safe mode, it usually poi...

Node.js Heap Out of Memory vs Stack Overflow: Key Differences
When a Node.js process crashes with an error, you might see either heap out of memory