Checklists for software errors, setup, and tool workflows.

Fix Nginx Upstream Connection Refused & Upstream Not Found

When you see upstream connection refused or upstream not found in your ...

Fix err_name_not_resolved Caused by Chrome Extensions

If you see err_name_not_resolved in Chrome, a misbehaving or conflicting extension c...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...

Fix Git Clone Timeout by Adjusting Config Settings

When git clone fails with a timeout error, it's often because the connection is ...

Fix 'Git Remote Origin Already Exists' Without Deleting

When you run git remote add origin <url> and see fatal: remote origin al...