/usr/bin/docker: Error response from daemon: driver failed programming external connectivity on endpoint app

[riking (Kane York)]

@jameshahnii

Tried sudo lsof -i :80 and got.

copy

COMMAND  PID     USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
nginx   3336     root    6u  IPv4  21408      0t0  TCP *:http (LISTEN)
nginx

Try sudo systemctl stop nginx .