error listen EADDRINUSE: address already in use :::8081. R code example
Example 1: Error: listen EADDRINUSE: address already in use :::8888
lsof -n -i:5000
Example 2: Error: listen EADDRINUSE: address already in use :::31641
ps aux | grep node //gets all the nodes and list of PID
kill -9 {PID}