Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you’re seeing a MemoryError in Python on your Mac while trying to load or process...

When you run pip install and get the error error: externally-managed-environme...

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

Fix DNS Probe Finished NXDOMAIN After Windows Update
After a Windows update, some users see the error 'DNS_PROBE_FINISHED_NXDOMAIN' in Chrome ...

Handling Python Requests Timeout on Slow Networks
When your Python script using the requests library hangs or throws a timeout excepti...

Fix Windows 11 Installation Assistant Stuck at 99%
You're running the Windows 11 Installation Assistant, it reaches 99%, and then sits there. No...