Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you are having trouble connecting to a remote PC—maybe you keep seeing authentication errors, ...

You run docker-compose up and get an error like Error starting userland proxy:...

Fix Firefox Secure Connection Failed Due to Proxy Settings
If you see "Secure Connection Failed" in Firefox and suspect a proxy is involved, you'...

Node.js Memory Limit Increase Not Working: Fixes
You set --max-old-space-size=4096 but Node.js still crashes with a memory error. Thi...

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

Fix Python Permission Denied When Installing Packages
You try to install a Python package with pip and get a PermissionError: [Errno 13] Permissi...