Error starting userland proxy listen tcp 0.0 0.0 5432 bind address already in use

solution##

First, identify the application that is occupying the port. In this case, it's 5432, so let's run it below.

terminal

$ sudo lsof -i : 5432 Password: COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME postgres 124 postgres 4u IPv6 0xda3bd3018b955b25 0t0 TCP *:postgresql [LISTEN] postgres 124 postgres 5u IPv4 0xda3bd3018b95cb95 0t0 TCP *:postgresql [LISTEN]

When I entered the password I set for Password, these messages came out. It seems that postgres is running and Docker doesn't work. Let's stop this.

terminal

$ sudo kill 124

Make sure you don't mistake it for 5432 here. The number to kill is 124 in the part called PID. When I tried to move it again, it was done.