Protractor does not run after installation
问题 After installation npm i protractor -g and running webdriver-manager update as in Tutorial, the next command webdriver-manager start throws errors: $ webdriver-manager start seleniumProcess.pid: 63737 Exception in thread "main" java.lang.UnsupportedClassVersionError: org/openqa/grid/selenium/GridLauncher : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:700) at java.security.SecureClassLoader