Checklists for software errors, setup, and tool workflows.

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Latest checklists

When you run docker pull and see access denied or permission deni...

Fix Git 'index.lock' Error in VS Code
If you see the error 'fatal: Unable to create 'path/.git/index.lock': File exists'...

How to Stop Nginx Redirect Loop: Practical Fixes
An Nginx redirect loop (too many redirects) usually appears as a browser error after multiple 301...

pnpm audit fix not working: common causes and fixes
When you run pnpm audit fix and it fails, you might see messages like "No fixes ...

How to Fix Nginx 502 Bad Gateway in Docker Compose
If you're running an application with Docker Compose and Nginx as a reverse proxy, a 502 Bad ...

Docker Container Exits Immediately: No Error, Common Fixes
You run docker run and the container starts, then exits within a second. No error me...