Docker Error: "...Only one usage of each socket address (protocol/network address/port) is normally permitted."

[arnehed]

I wanted to share what I just learned in case it might help someone else.

After installing Docker and running the StratoCyberLab 'docker compose up', I was not getting the StratoCyberLab in my browser at 127.0.0.1. After looking at the container in Docker, the 'dashboard' container was not running. When I tried to start it, I would get the following error.

(HTTP code 500) server error - Ports are not available: exposing port TCP 0.0.0.0:80 -> 0.0.0.0:0: listen tcp 0.0.0.0:80: bind: Only one usage of each socket address (protocol/network address/port) is normally permitted.

I had to use 'ps -aux' and 'netstat -aof | findstr :80' and ProcExec and TCPView and tasklist /fi "pid eq " in order order to find the process that was using 0.0.0.0:80 already. For me, it was a Node.js instance for some reason.
I elected to just uninstall Node.js (I installed it a year ago and now I can not remember why) and now my Container runs fine and I can see the Lab in my browser.