Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When you run git clone over HTTPS and see an error like Failed to connect to g...

Fix npm run build Exit Code 1: Common Causes and Solutions
When you run npm run build and see "exit code 1", it means the build script ...

Fix Chrome Access Violation on Startup – Step-by-Step Guide
If Chrome crashes on startup with an access violation error, it usually means a ...

Fix Nginx Upstream Connection Refused Socket Error
When Nginx returns a 502 Bad Gateway or logs upstream connection refused

VSCode IntelliSense Not Working for React: Fixes
You open a React component in VSCode, start typing a prop or a hook, and get no suggestions. Inte...

Fix VSCode Breakpoints Not Hit in launch.json
You set a breakpoint in Visual Studio Code, start debugging with a launch.json confi...