Checklists for software errors, setup, and tool workflows.

npm package.json Not Found After npm init

You run npm init, answer the prompts, and then try to install a package or run a scr...

Docker Compose 'Network Not Found' Error Fix

When running docker compose up, you might see an error like:

network "my...

How to Recover from Detached HEAD in Git

You're working in a Git repository and suddenly see a message like 'You are in 'detac...

Fix Nginx Configuration Test Failure in Docker

When you run nginx -t inside a Docker container and get an error, the container usua...

Git Merge Unrelated Histories: When and How to Use --allow-unrelated-histories

You try to merge two branches and get fatal: refusing to merge unrelated histories. ...

Docker Container Exits Immediately: Fix with Restart Policy

You start a Docker container, it runs for a second, then stops. No error messages, just a quick e...