#First run this, to get port information (with the port you want to kill) sudo lsof -i :3000. #Then run this, with <PID> replaced by the value in the column returned by previous command. kill -9 <PID>
#First run this, to get port information (with the port you want to kill) sudo lsof -i :3000. #Then run this, with <PID> replaced by the value in the column returned by previous command. kill -9 <PID>