Selenium 网格："Could not find a non-loopback ip4 address for this machine" 和 "An illegal reflective access operation has occurred"

Question

我正在尝试设置一个 Selenium 网格，其中集线器位于 Windows10 中，节点位于 Ubuntu 中。我已经在 virtualbox 中安装了 ubuntu（在我的 HOST win10 中安装了运行）。当我尝试注册一个节点时，出现 "Could not find a non-loopback ip4 address for this machine" 错误。我对这个问题一无所知。请帮忙解决

我在论坛上发现了类似的问题，但没有明确的解决方案。

当我连接到 LAN 时，收到以下消息。

org.openqa.selenium.WebDriverException: Cound not find a non-loopback ip4 address for this machine

如果我切换到 Wifi，会出现如下不同的错误。

-VirtualBox:~/Documents$ java -Dwebdriver.gecko.driver="/home/mehamgn/Documents/drivers/geckodriver/" -jar selenium-server-standalone-3.12.0.jar -role node -nodeConfig grid_node.json
18:54:46.792 INFO [GridLauncherV3.launch] - Selenium build info: version: '3.12.0', revision: '7c6e0b3'
18:54:46.860 INFO [GridLauncherV3.launch] - Launching a Selenium Grid node on port 5555
2018-05-24 18:54:51.656:INFO::main: Logging initialized @14625ms to org.seleniumhq.jetty9.util.log.StdErrLog
18:54:55.286 INFO [SeleniumServer.boot] - Selenium Server is up and running on port 5555
18:54:55.294 INFO [GridLauncherV3.launch] - Selenium Grid node is up and ready to register to the hub
18:54:55.383 INFO [SelfRegisteringRemote.run] - Starting auto registration thread. Will try to register every 10000 ms.
18:54:55.388 INFO [SelfRegisteringRemote.registerToHub] - Registering the node to the hub: http://localhost:4444/grid/register
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.openqa.selenium.json.BeanToJsonConverter (file:/home/mehamgn/Documents/selenium-server-standalone-3.12.0.jar) to method sun.reflect.annotation.AnnotatedTypeFactory$AnnotatedTypeBaseImpl.getDeclaredAnnotations()
WARNING: Please consider reporting this to the maintainers of org.openqa.selenium.json.BeanToJsonConverter
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
18:55:00.088 INFO [SelfRegisteringRemote.run] - Couldn't register this node: Error sending the registration request: Failed to connect to localhost/127.0.0.1:4444
18:55:10.159 INFO [SelfRegisteringRemote.run] - Couldn't register this node: The hub is down or not responding: Failed to connect to localhost/127.0.0.1:4444
18:55:20.171 INFO [SelfRegisteringRemote.run] - Couldn't register this node: The hub is down or not responding: Failed to connect to localhost/127.0.0.1:4444
18:55:30.181 INFO [SelfRegisteringRemote.run] - Couldn't register this node: The hub is down or not responding: Failed to connect to localhost/127.0.0.1:4444
18:55:40.185 INFO [SelfRegisteringRemote.run] - Couldn't register this node: The hub is down or not responding: Failed to connect to localhost/127.0.0.1:4444
18:55:50.198 INFO [SelfRegisteringRemote.run] - Couldn't register this node: The hub is down or not responding: Failed to connect to localhost/127.0.0.1:4444

节点配置JSON文件

{
    "capabilities":
[
    {
        "browserName":"firefox",
        "version":"60.0.1",
        "maxInstances":1
        },
        {
            "browserName":"chrome",
            "version":"66.0.3359.181",
            "maxInstances":1
            }],
            "port":5555,
            "hubHost":"192.168.2.8",
            "hubPort":4444,
            "registerCycle":10000,
            "register":true,
            "timeout":0,
            "maxSessions":2
        }

Answer 1

这是第一条错误消息...

org.openqa.selenium.WebDriverException: Cound not find a non-loopback ip4 address for this machine

...表示由于 /etc/hosts (Ubuntu) 文件或 \WINDOWS\system32\drivers\etc\hosts (Windows) 文件.

您可以在

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第二条错误信息...

18:54:55.388 INFO [SelfRegisteringRemote.registerToHub] - Registering the node to the hub: http://localhost:4444/grid/register
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.openqa.selenium.json.BeanToJsonConverter (file:/home/mehamgn/Documents/selenium-server-standalone-3.12.0.jar) to method sun.reflect.annotation.AnnotatedTypeFactory$AnnotatedTypeBaseImpl.getDeclaredAnnotations()
WARNING: Please consider reporting this to the maintainers of org.openqa.selenium.json.BeanToJsonConverter
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
18:55:00.088 INFO [SelfRegisteringRemote.run] - Couldn't register this node: Error sending the registration request: Failed to connect to localhost/127.0.0.1:4444
18:55:10.159 INFO [SelfRegisteringRemote.run] - Couldn't register this node: The hub is down or not responding: Failed to connect to localhost/127.0.0.1:4444

...表示 Selenium Grid Node 未成功注册到 Selenium Grid Hub

但是启动 Selenium 网格节点 的命令看起来容易出错，应该如下所示：

java -Dwebdriver.gecko.driver=/home/mehamgn/Documents/drivers/geckodriver -jar selenium-server-standalone-3.12.0.jar -role node -nodeConfig grid_node.json

注:

-Dwebdriver.gecko.driver 的值必须以二进制名称结尾，例如geckodriver（省略尾随 /）
确保您传递的 nodeConfig.json 文件（根据您使用的代码 grid_node.json）

Selenium 网格："Could not find a non-loopback ip4 address for this machine" 和 "An illegal reflective access operation has occurred"

Selenium Grid: "Could not find a non-loopback ip4 address for this machine" and "An illegal reflective access operation has occurred"

java

selenium

webdriver

selenium-grid

selenium-webdriver