Checklists for software errors, setup, and tool workflows.

Fix git index.lock File Exists Error on Windows

If you see fatal: Unable to create 'index.lock': File exists. when running G...

How to Recover from a Detached HEAD in Git After a Rebase

You're in the middle of a rebase, you see a message like 'detached HEAD', and you'...

How to Fix Nginx Redirect Loop: Step-by-Step Troubleshooting

If you're seeing a redirect loop error (ERR_TOO_MANY_REDIRECTS) in your browser, Nginx is cau...

Fix 'network not found' Error in Docker on Linux

When you see docker: Error response from daemon: network <name> not found on L...

Git Fatal: Refusing to Merge Unrelated Histories – Workaround

You try to merge two Git branches and get this error:

fatal: refusing to merge unre...