Checklists for software errors, setup, and tool workflows.

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Latest checklists

You run docker compose up and get an error like Error: Port 3306 is already al...

How to Remove the Externally Managed Environment Flag in pip
If you're seeing error: externally-managed-environment when using pip on a moder...

Fix Windows 11 Installation Assistant Stuck at 99%
You're running the Windows 11 Installation Assistant, it reaches 99%, and then nothing happen...

How to Fix Git 'index.lock' File Exists Error
When you see fatal: Unable to create 'path/.git/index.lock': File exists., G...

Fix Python Permission Denied When Installing Packages on Mac
If you see a 'permission denied' error when running pip install somepackage ...

Fix Virtual Environment Not Activating in Terminal
Why Your Virtual Environment Won't Activate
You open a terminal, navigate to your pro...