C:\Users\user1\Documents\TESTPERL>perl TEST6.pl
Error while executing command: invalid argument: 'url' must be a string
  (Session info: chrome=70.0.3538.77)
  (Driver info: chromedriver=2.43.600210 (68dcf5eebde37173d4027fa8635e332711d2874a),platform=Windows NT 6.1.7601 SP1 x86_64) at C:/Strawberry/perl/sit
e/lib/Selenium/Remote/Driver.pm line 391.
 at C:/Strawberry/perl/site/lib/Selenium/Remote/Driver.pm line 348.