SessionNotCreatedException:消息:无法创建新服务:通过Python与ChromeDriver和SeleniumGrid一起使用的ChromeDriverService

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任何人都知道这是怎么回事或如何调试错误，如下所示.我所做的步骤是使用setup hub命令并将节点注册到集线器.在命令注册节点之后.我可以看到日志为

Hi anyone know what is going on or how I can debug the error as following. the step I did is using setup hub command and register node to hub. after the command register node. I can see the log as

The node is registered to the hub and ready to use

但是，当我运行测试脚本时，我将错误打印为:

However when I run the test script I have error print up as:

seleniummon.exceptions.SessionNotCreatedException: Message: Unable to create new service: ChromeDriverService

二进制版本:

• 硒独立版本:3.14.0
• 硒远程驱动程序版本:selenium == 3.14.1
• python版本:3.6.4

脚本:

import os from selenium import webdriver from selenium.webdrivermon.desired_capabilities import DesiredCapabilities driver = webdriver.Remote(command_executor='localhost:4444/wd/hub', desired_capabilities=DesiredCapabilities.CHROME)

设置中心:

#java -jar /Users/admin/selenium-server-standalone-3.14.0.jar -host localhost -role hub

注册节点:

#java -jar /Users/admin/selenium-server-standalone-3.14.0.jar -role node

错误:

E seleniummon.exceptions.SessionNotCreatedException: Message: Unable to create new service: ChromeDriverService E Build info: version: '3.14.0', revision: 'aacccce0', time: '2018-08-02T20:13:22.693Z' E Driver info: driver.version: unknown E Stacktrace: E at org.openqa.selenium.remote.server.ServicedSession$Factory.lambda$get$0 (ServicedSession.java:134) E at org.openqa.selenium.remote.server.ServicedSession$Factory.apply (ServicedSession.java:151) E at org.openqa.selenium.remote.server.ActiveSessionFactory.lambda$apply$12 (ActiveSessionFactory.java:177) E at java.util.stream.ReferencePipeline$3$1.accept (ReferencePipeline.java:193) ... E at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:511) E at java.util.concurrent.FutureTask.run (FutureTask.java:266) E at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1142) E at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:617) E at java.lang.Thread.run (Thread.java:745) ../lib/python3.6/site-packages/selenium/webdriver/remote/errorhandler.py:242: SessionNotCreatedException

推荐答案

此错误消息...

seleniummon.exceptions.SessionNotCreatedException: Message: Unable to create new service: ChromeDriverService

...表示 ChromeDriver 无法启动/产生新的 ChromeDriverService .

...implies that the ChromeDriver was unable to initiate/spawn a new ChromeDriverService.

正在使用的二进制版本之间，在命令和不兼容中存在两个问题:

There are a couple of issues in the commands and incompatibility between the version of the binaries you are using as follows:

• 您的 JDK版本是 1.8.0_91 ，这很漂亮古代.
• 将 JDK 升级到最新级别 JDK 8u181 .

• 要注册 Selenium Grid Hub ，您需要使用以下命令:

• Your JDK version is 1.8.0_91 which is pretty ancient.
• Upgrade JDK to recent levels JDK 8u181.

• To register a Selenium Grid Hub you need to use the following command:

>java -jar /Users/admin/selenium-server-standalone-3.14.0.jar -role hub

要为 ChromeDriver 和 Chrome 注册 Selenium Grid节点，您需要传递 ChromeDriver的绝对路径以及注册URI 的 Key 和 Value ，如下所示:

To register a Selenium Grid Node for ChromeDriver and Chrome you need to pass the absolute path of the ChromeDriver along with the Key and Value of the Registration URI as follows:

>java -Dwebdriver.chrome.driver=/path/to/chromedriver.exe -jar /Users/admin/selenium-server-standalone-3.14.0.jar -role node -hub <IP_GRID_HUB>:4444/grid/register

您的代码块对我来说很好.

You code block looks good to me.