Does not want to run the village on the standard port. When I change the port, everything is fine when you first start, but after stopping this port becomes busy java. 
sh-3.2# webdriver-manager start [10:53:03] I/start - java -Dwebdriver.chrome.driver=/usr/local/lib/node_modules/protractor/node_modules/webdriver-manager/selenium/chromedriver_2.36 -Dwebdriver.gecko.driver=/usr/local/lib/node_modules/protractor/node_modules/webdriver-manager/selenium/geckodriver-v0.20.0 -jar /usr/local/lib/node_modules/protractor/node_modules/webdriver-manager/selenium/selenium-server-standalone-3.11.0.jar -port 4444 [10:53:03] I/start - seleniumProcess.pid: 14841. 10:53:04.228 INFO [GridLauncherV3.launch] - Selenium build info: version: '3.11.0', revision: 'e59cfb3'. 10:53:04.231 INFO [GridLauncherV3$1.launch] - Launching a standalone Selenium Server on port 4444 2018-03-16 10:53:04.378:INFO::main: Logging initialized @432ms to org.seleniumhq.jetty9.util.log.StdErrLog 10:53:04.514 ERROR [SeleniumServer.boot] - Port 4444 is busy, please choose a free port and specify it using -port option [10:53:04] I/start - Selenium Standalone has exited with code 0 sh-3.2# lsof -i :4444 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME java 12841 root 5u IPv6 0xae97bc8db155355 0t0 TCP *:krb524(LISTEN) 