Checklists for software errors, setup, and tool workflows.

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Fix ERR_CONNECTION_RESET in Chrome: Step-by-Step Guide

If you see ERR_CONNECTION_RESET in Chrome, it means the connection was interrupt...

Fix Nginx Upstream Connection Refused Error

If you see upstream connection refused in your Nginx error logs, it means Nginx trie...

Fix Git Authentication Failed in VS Code on Mac

If you see "Git authentication failed" when pushing or pulling in VS Code on a Mac, the p...

Fix ERR_NAME_NOT_RESOLVED in Chrome Safe Mode

If you see ERR_NAME_NOT_RESOLVED in Chrome while browsing in safe mode (Incognit...

How to Fix VS Code IntelliSense Not Working

If you're seeing no suggestions, missing completions, or a spinning 'Loading...' in V...