Checklists for software errors, setup, and tool workflows.

How to Fix VS Code IntelliSense Not Working

If you're seeing no suggestions, missing completions, or a spinning 'Loading...' in V...

Fix npm run build Failed Due to Missing Dependencies

When you run npm run build and it fails with errors about missing dependencies, the ...

Python Virtual Environment Not Activating: Common Fixes

You run source venv/bin/activate (or venv\Scripts\activate on Windows) ...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

You run git clone https://example.com/repo.git and get:

fatal: unable to acc...

Fix Windows 11 Setup Stuck at 99%

You're installing Windows 11 and the progress bar hangs at 99% for a long time. This is a kno...

Fix Firefox Secure Connection Failed Due to Cache

You see a 'Secure Connection Failed' error in Firefox, often with messages like PR_CO...