Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You’re running a Node.js script and it crashes with FATAL ERROR: CALL_AND_RETRY_LAST Alloca...

How to Fix Python Memory Errors When Reading Large CSV Files
If you've ever tried to load a CSV file that's several gigabytes into pandas with p...

Python Dependency Conflict Checklist: Diagnose & Fix
You're installing a package with pip, and suddenly you see a wall of red text: ERROR: C...

Fix 'python' Command Not Found on Windows 10 with Python 3.10
After installing Python 3.10 on Windows 10, you might type python in Command Prompt ...

Fix npm 'package.json not found' Error in Subdirectories
You're working in a subdirectory of your project, run npm install or npm r...

Fix Windows 11 Installation Assistant Stuck at 99%
You're upgrading to Windows 11 using the Installation Assistant, and it gets stuck at 99% for...