Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You've created a Python virtual environment on Ubuntu, but when you run source venv/bin...

Fix 'package.json Not Found' After Cloning a Repository
Symptom
You clone a repository from GitHub (or another remote), change into the directory...

Fix 'Permission Denied' When Running pip install --user
If you see Permission denied when running pip install --user somepackage

Fix Docker 'network not found' Error for Bridge Driver
When you run a Docker container and get an error like network not found referring to...

Fix Permission Denied on chmod in VS Code Terminal
You're running chmod in the VS Code integrated terminal and seeing 'permissi...

Fix Node.js Heap Out of Memory When Running Tests
When running test suites, you may encounter a fatal error like FATAL ERROR: Ineffective mar...