Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You run docker compose up and get an error like Error: Port 3306 is already al...

Docker Compose Env Variable Not Available in Container: Fix
You define an environment variable in your docker-compose.yml file, but when you run...

Fix Git Permission Denied in VS Code Terminal
You're working in VS Code, try to run a Git command in the integrated terminal, and get a ...

Fix Git 'index.lock' File Exists Error in IntelliJ
If you see an error like fatal: Unable to create 'project/.git/index.lock': File ex...

Fix Docker Compose Port Allocation Errors
When you run docker compose up and see an error like "port is already alloca...

Fixing Nginx Permission Denied on Mounted Drive
When you mount an external drive and point Nginx to serve files from it, you may get a 403 Forbid...