Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If Windows Update won't start and you see an error like "Windows Update service is not ru...

You run npm run build and get an error like Error: Cannot find module 'som...

Increase Node.js Memory Limit for npm Scripts
When running npm scripts that handle large files, complex builds, or memory-intensive operations,...

Fix Nginx Upstream Connection Refused in Docker
You have Nginx running, either on the host or in a container, proxying to another Docker containe...

Node.js Heap Out of Memory in Production: Practical Fixes
You're running a Node.js application in production when it crashes with FATAL ERROR: In...

Fix Node Sass Build Failure: Environment Variable Errors
When you run npm install or a build script and see an error like Node Sass doe...