Checklists for software errors, setup, and tool workflows.

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Fix ERR_CONNECTION_RESET After Chrome Update

After a Chrome update, you may see the error ERR_CONNECTION_RESET when trying to...

Fixing Nginx 502 Bad Gateway in Docker Networks

You have an Nginx container proxying requests to another container (like a PHP-FPM or Node app), ...

Fix Python Venv Not Activating in PowerShell

You open PowerShell, navigate to your project, and run venv\Scripts\activate but not...

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...

Python Dependency Conflict Checklist: Diagnose & Fix

You're installing a package with pip, and suddenly you see a wall of red text: ERROR: C...