Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If Chrome is crashing or misbehaving on your Mac, the profile log file can reveal what went wrong...

When you launch Windows Terminal and see a 'permission denied' error, it usually means the termin...

When you run npm install in the VS Code terminal and see a EACCES: permission ...

Fixing Nginx Permission Denied for Upstream Unix Socket
If you see connect() to unix:/var/run/php-fpm.sock failed (13: Permission denied) in...

Fix Composer Memory Limit Exhausted Error
When running Composer commands, you might encounter a fatal error: Allowed memory size of x...

Chrome Profile 502 Bad Gateway Error: Troubleshooting Checklist
If you're seeing a 502 Bad Gateway error in Chrome, and other browsers work fine...