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 Chrome Access Violation Error on Windows 7

If you see an "access violation" error in Chrome on Windows 7, it usually means Chrome tr...

Python Requests Timeout Not Working: Fixes & Checks

You set a timeout in requests.get(url, timeout=5), but the request hangs for minutes...

Git Merge Conflict: Keep Both Files Instead of One

When you run git merge and get a conflict, Git stops and marks the conflicting files...

Fix ERR_CONNECTION_RESET Caused by Firewall Blocking Chrome

If you see ERR_CONNECTION_RESET in Chrome, it usually means something interrupte...

How to Fix Git Push Rejected: Non-Fast-Forward Merge

You run git push and get: ! [rejected] main -> main (non-fast-forward)