Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You open Terminal, run source venv/bin/activate, and nothing happens—or you get an e...

When you run npm install or npm start and see package.json not fo...

Fix Windows Security App Error 0x80070424
When you open Windows Security or try to run a scan, you might see error code 0x80070424. This us...

DNS Probe Finished NXDOMAIN vs Server Not Found: Key Differences
When you see a 'DNS probe finished NXDOMAIN' or 'Server not found' error in your ...

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