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...

pnpm audit fix not working: common causes and fixes
When you run pnpm audit fix and it fails, you might see messages like "No fixes ...

Prevent Git Index Lock File Creation: Practical Fixes
If you see fatal: Unable to create 'path/to/.git/index.lock': File exists., ...

Fix VSCode Breakpoints Not Hitting in TypeScript
You set a breakpoint in a TypeScript file, run the debugger, and execution never pauses. This is ...

Fixing Edge Sync Error 0x80072efd on Windows
If you see error code 0x80072efd when trying to sync your Microsoft Edge browser data, the sync p...

Fix ERR_CERT_AUTHORITY_INVALID in Chrome Incognito Mode
You open Chrome incognito and hit a warning: NET::ERR_CERT_AUTHORITY_INVALID. Th...