尝试运行Selenium时出现问题 [英] Issue while trying to run Selenium

问题描述

我正在使用Ubuntu 12.04并尝试使用命令运行Selenium

I am using Ubuntu 12.04 and trying to run Selenium, with the command

webdriver-manager start

但我一直在

webdriver-manager start
seleniumProcess.pid: 3522
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.defineClassCond(ClassLoader.java:631)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Could not find the main class: org.openqa.grid.selenium.GridLauncher. Program will exit.
Selenium Standalone has exited with code 1

我安装它

sudo npm install –g protractor
webdriver-manager update

如何修复此问题并运行Selenium服务器。

How can I fix this issue and run the Selenium server.

推荐答案

不支持的专业.minor版本错误通常是由于运行java程序而导致的，该程序是在比运行的java版本更新的java版本下编译的。
最有可能你使用的selenium版本是从比安装的java版本更新的java版本编译的。

Unsupported major.minor version error usually occurs due to running a java program which is compiled under a newer java version than the running java version. most probably the selenium version which you are using is compiled from a newer java version than your installed java version.

请检查你的java版本并升级到最新版本java版。

Please check your java version and upgrade to latest java version.

如何修复java.lang.UnsupportedClassVersionError：不支持的major.minor版本

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