Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You installed Python on Windows, but when you type python --version in Command Promp...

When running test suites, you may encounter a fatal error like FATAL ERROR: Ineffective mar...

Fix Docker Compose Environment Variable Not Set on Build
You've defined environment variables in your docker-compose.yml under envi...

Fix VS Code Terminal Not Opening on Mac
You open VS Code, press Ctrl+` or click the Terminal panel, and nothing happens. The...

Fix Git Clone Connection Timed Out Due to Proxy Settings
You run git clone https://github.com/example/repo.git and after a long pause you get...

Fix 'nginx configuration test failed invalid parameter'
When running nginx -t to test configuration, seeing "nginx: [emerg] inva...