WebDriverException:未知错误:Runtime.executionContextCreated具有无效的"上下文":初始化Chrome浏览器时

Question

我正在尝试开始使用selenium并下载了一个chrome驱动程序并放入我的类路径中.我现在正试图获得标题,看看我是否可以让它发挥作用.代码目前看起来像这样:

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;

public class Flows {

    public static void main(String[] args) {

        System.setProperty("webdriver.chrome.driver", "/Users/mn/Desktop/project/turv/src/main/chromedriver");
        WebDriver driver = new ChromeDriver();
        String baseUrl = "http://google.dk/";
        driver.get(baseUrl);
        System.out.println(driver.getTitle());
        driver.close();
    }
}

我希望我的输出与"Google"类似,但我得到了这个错误:

Connected to the target VM, address: '127.0.0.1:55299', transport: 'socket'
Starting ChromeDriver (v2.8.241036) on port 2571
[warn] kq_init: detected broken kqueue; not using.: Undefined error: 0
May 07, 2018 12:12:35 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: OSS
Disconnected from the target VM, address: '127.0.0.1:55299', transport: 'socket'
Exception in thread "main" org.openqa.selenium.WebDriverException: unknown error: Runtime.executionContextCreated has invalid 'context': {"auxData":{"frameId":"11895A1B77AC560388AA2919259E1422","isDefault":true},"id":1,"name":"","origin":"://"}
  (Session info: chrome=66.0.3359.139)
  (Driver info: chromedriver=2.8.241036,platform=Mac OS X 10.13.3 x86_64) (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 0 milliseconds
Build info: version: '3.11.0', revision: 'e59cfb3', time: '2018-03-11T20:26:55.152Z'
System info: host: 'cetreas-MBP', ip: 'fe80:0:0:0:c9e:2c67:1d27:4e0b%en0', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.13.3', java.version: '1.8.0_161'
Driver info: org.openqa.selenium.chrome.ChromeDriver
Capabilities {acceptSslCerts: true, applicationCacheEnabled: false, browserConnectionEnabled: false, browserName: chrome, chrome: {userDataDir: /var/folders/s7/lv2wt4t15cn...}, cssSelectorsEnabled: true, databaseEnabled: false, handlesAlerts: true, javascriptEnabled: true, locationContextEnabled: true, nativeEvents: true, platform: MAC, platformName: MAC, rotatable: false, takesHeapSnapshot: true, takesScreenshot: true, version: 66.0.3359.139, webStorageEnabled: true}
Session ID: ca1f4ba131e73c3d01058bec2b976d22
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:214)
    at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:166)
    at org.openqa.selenium.remote.http.JsonHttpResponseCodec.reconstructValue(JsonHttpResponseCodec.java:40)
    at org.openqa.selenium.remote.http.AbstractHttpResponseCodec.decode(AbstractHttpResponseCodec.java:80)
    at org.openqa.selenium.remote.http.AbstractHttpResponseCodec.decode(AbstractHttpResponseCodec.java:44)
    at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:158)
    at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:83)
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:545)
    at org.openqa.selenium.remote.RemoteWebDriver.get(RemoteWebDriver.java:273)
    at com.cetrea.flows.Flows.main(Flows.java:15)

我无法弄清楚错误试图告诉我的是什么.是因为我在要求完全加载网站之前要求标题吗？我需要在之前添加某种waitforit命令getTitle()吗？

Answer 1

此错误消息...

org.openqa.selenium.WebDriverException: unknown error: Runtime.executionContextCreated has invalid 'context': {"auxData":{"frameId":"11895A1B77AC560388AA2919259E1422","isDefault":true},"id":1,"name":"","origin":"://"}

...暗示ChromeDriver无法启动/生成新的WebBrowser即Chrome浏览器会话.

您的主要问题是您使用的二进制文件之间的版本兼容性如下:

• 你正在使用chromedriver = 2.8这是非常古老的.
• 您正在使用chrome = 66.0
• ChromeDriver v2.38的发行说明明确提到以下内容:

支持Chrome v65-67

因此,ChromeDriver版本(v2.8)与Chrome浏览器版本(v66.0)之间存在明显的不匹配

解

• 升级ChromeDriver当前ChromeDriver v2.38水平.
• 将Chrome版本保持在Chrome v66.x级别.(根据ChromeDriver v2.38发行说明)
• 清理你的项目工作,通过你的IDE和重建仅需要依赖你的项目.
• 使用CCleaner工具在执行测试套件之前和之后擦除所有操作系统.
• 如果您的基本Web客户端版本太旧,请通过Revo Uninstaller将其卸载并安装最新的GA和已发布的Web客户端版本.
• 进行系统重启.
• 执行你的@Test.
• 始终driver.quit()在tearDown(){}方法内调用以正常关闭和销毁WebDriver和Web Client实例.