TCPServer Error: Address already in use - bind(2)

Question

Jekyll was working fine for me few weeks back but now all of a sudden it gives me the following error:

TCPServer Error: Address already in use - bind(2)
INFO         


        

Answer 1

Type this in your terminal to find out the PID of the process that's using the 3000 port:

$ lsof -wni tcp:3000

Then, use the number in the PID column to kill the process:

$ kill -9 PID