Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you see ERR_CONNECTION_RESET in Chrome on your Mac, the browser cannot establ...

You run pip install and see errors like “package A requires package B==1.0 but y...

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

Fix Nginx Configuration Test Syntax Errors
When you run nginx -t and see syntax error, the nginx service will ...

Fixing Node Version Mismatch with package.json Engines
You run npm install or node app.js and see a warning or error about the...

Fix Git Clone Connection Timed Out Due to Firewall
You run git clone and after a long pause see connection timed out. This...