Received an error when do the port forward usin the command below in Minikube,

‚Äč$ kubectl port-forward --address 0.0.0.0 svc/linuxfaq-webapp 30080:80 

[1] 1767868 $ Unable to listen on port 30080: Listeners failed to create with the following 
errors: [unable to create listener: Error listen tcp4 0.0.0.0:30080: bind: address already in use] 
error: unable to listen on any of the requested ports: [{30080 80}]

Find out whether the port 30080 is listening in your machine already using the lsof command below,

$ lsof -i 30080 
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME kubectl 
329218 ec2-user 8u IPv4 4471952 0t0 TCP *:30080 (LISTEN)

Kill the particular processor using the command KILL, then run the command again. It should be working fine.
 $ kill -9 329218