Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You run docker-compose up and see an error like Error: Port 8080 is already al...

Fix 'Permission Denied' for Yarn in VS Code Terminal
When you try to run yarn in the VS Code integrated terminal and see a Permissi...

Fix NET::ERR_CERT_AUTHORITY_INVALID in Chrome
When Chrome shows 'NET::ERR_CERT_AUTHORITY_INVALID', it means the browser cannot verify t...

Fix 'Git Remote Origin Already Exists' in VS Code
If you see “fatal: remote origin already exists” when trying to git remote add origin

Fix git index.lock File Exists Error on Windows
If you see fatal: Unable to create 'index.lock': File exists. when running G...

How to Fix Chrome Crash Loop on Windows and Mac
If Chrome opens for a few seconds and then crashes, or keeps restarting in a loop, you're lik...