Checklists for software errors, setup, and tool workflows.

Git index.lock File Exists Even After Deleting: Fixes

You delete the .git/index.lock file, but Git still says it exists. This can happen d...

Fix Chrome Sync Not Working Due to Proxy Settings

When Chrome sync stops working, a misconfigured proxy is a common culprit. You might see errors l...

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

Symptom

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

Fix err_name_not_resolved Caused by Chrome Extensions

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

How to Fix Chrome Extensions Not Loading

You open Chrome, click the puzzle icon, and your extensions are grayed out or missing. This is co...

Fix Cloudflare 521 Error Due to Server Overload

You see a Cloudflare 521 error page. The message says the web server is down. Often, this means y...