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 &#...

How to Show Hidden Icons on Taskbar in Windows 10

You may notice that some app icons in the system tray (notification area) are hidden behind an up...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

You're running Nginx as a reverse proxy inside Docker on Ubuntu, and suddenly you see

Fix Docker Build Context Canceled on Network Drive

You're running docker build from a network drive (NAS, SMB, NFS, or mapped drive...

Fix ERR_CONNECTION_RESET on Chrome for Android

If you see the ERR_CONNECTION_RESET error in Chrome on your Android phone or tab...

Fix 'port already allocated' for Nginx in Docker Compose

You're starting your Docker Compose setup with Nginx, and you see "port is already alloca...