java - 使用 GeckoDriver 和 Firefox 执行代码时 org.openqa.selenium.firefox.NotConnectedException : Unable to connect to host 127. 0.0.1

Question

代码试验:

public class loginmethod { 

    @Test 
    public void login() throws InterruptedException { 
        System.setProperty("webdriver.gecko.driver", "D:\\Tools\\geckodriver"); 
        WebDriver driver = new FirefoxDriver(); 
        driver.manage().window().maximize(); 
        driver.manage().timeouts().implicitlyWait(20, TimeUnit.SECONDS);
    }
}

二进制版本详细信息:

• 火狐:60.0
• Selenium jar :2.45
• Gecko 驱动程序:20.1

当我使用 Firefox 驱动程序运行代码时，出现以下错误:

org.openqa.selenium.firefox.NotConnectedException: Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms. Firefox console output:
 Potential driver version mismatch ignored due to missing DLLs igd10umd64 v= and igd10iumd64 v=
*** Blocklist::_preloadBlocklistFile: blocklist is disabled
1526302485156   addons.xpi-utils    DEBUG   Starting async load of XPI database 
1526302485236   addons.xpi  DEBUG   Ignoring file entry whose name is not a valid add-on QA\AppData\Local\Temp\anonymous5274473150250365422webdriver-profile\extensions\webdriver-staging
1526302485236   addons.xpi  DEBUG   Existing add-on fxdriver@googlecode.com in app-profile
1526302485236   addons.xpi  INFO    Mapping activity-stream@mozilla.org to C:\Program Files\Mozilla Firefox\browser\features\activity-stream@mozilla.org.xpi
1526302485236   addons.xpi  INFO    Mapping aushelper@mozilla.org to C:\Program Files\Mozilla Firefox\browser\features\aushelper@mozilla.org.xpi
1526302485236   addons.xpi  INFO    Mapping firefox@getpocket.com to C:\Program Files\Mozilla Firefox\browser\features\firefox@getpocket.com.xpi
1526302485236   addons.xpi  INFO    Mapping followonsearch@mozilla.com to C:\Program Files\Mozilla Firefox\browser\features\followonsearch@mozilla.com.xpi
1526302485236   addons.xpi  INFO    Mapping formautofill@mozilla.org to C:\Program Files\Mozilla Firefox\browser\features\formautofill@mozilla.org.xpi
1526302485236   addons.xpi  INFO    Mapping onboarding@mozilla.org to C:\Program Files\Mozilla Firefox\browser\features\onboarding@mozilla.org.xpi
1526302485236   addons.xpi  INFO    Mapping screenshots@mozilla.org to C:\Program Files\Mozilla Firefox\browser\features\screenshots@mozilla.org.xpi
1526302485236   addons.xpi  INFO    Mapping shield-recipe-client@mozilla.org to C:\Program Files\Mozilla Firefox\browser\features\shield-recipe-client@mozilla.org.xpi
1526302485236   addons.xpi  INFO    Mapping webcompat@mozilla.org to C:\Program Files\Mozilla Firefox\browser\features\webcompat@mozilla.org.xpi
1526302485236   addons.xpi  DEBUG   Existing add-on activity-stream@mozilla.org in app-system-defaults
1526302485236   addons.xpi  DEBUG   Existing add-on aushelper@mozilla.org in app-system-defaults
1526302485236   addons.xpi  DEBUG   Existing add-on firefox@getpocket.com in app-system-defaults
1526302485236   addons.xpi  DEBUG   Existing add-on followonsearch@mozilla.com in app-system-defaults
1526302485236   addons.xpi  DEBUG   Existing add-on formautofill@mozilla.org in app-system-defaults
1526302485238   addons.xpi  DEBUG   Existing add-on onboarding@mozilla.org in app-system-defaults
1526302485238   addons.xpi  DEBUG   Existing add-on screenshots@mozilla.org in app-system-defaults
1526302485238   addons.xpi  DEBUG   Existing add-on shield-recipe-client@mozilla.org in app-system-defaults
1526302485238   addons.xpi  DEBUG   Existing add-on webcompat@mozilla.org in app-system-defaults
1526302485238   addons.xpi  INFO    Mapping {972ce4c6-7e08-4474-a285-3208198ce6fd} to C:\Program Files\Mozilla Firefox\browser\extensions\{972ce4c6-7e08-4474-a285-3208198ce6fd}.xpi
1526302485238   addons.xpi  DEBUG   Existing add-on {972ce4c6-7e08-4474-a285-3208198ce6fd} in app-global
1526302485238   addons.xpi  DEBUG   getInstallState changed: false, state: {}
1526302485332   addons.xpi-utils    DEBUG   Async JSON file read took 0 MS
1526302485332   addons.xpi-utils    DEBUG   Finished async read of XPI database, parsing...
1526302485336   addons.xpi-utils    DEBUG   Successfully read XPI database
Crash Annotation GraphicsCriticalError: |[C0][GFX1]: Potential driver version mismatch ignored due to missing DLLs igd10umd64 v= and igd10iumd64 v= (t=6.22361) [GFX1]: Potential driver version mismatch ignored due to missing DLLs igd10umd64 v= and igd10iumd64 v=
Crash Annotation GraphicsCriticalError: |[C0][GFX1]: Potential driver version mismatch ignored due to missing DLLs igd10umd64 v= and igd10iumd64 v= (t=2.67818) [GFX1]: Potential driver version mismatch ignored due to missing DLLs igd10umd64 v= and igd10iumd64 v=

Answer 1

此错误消息...

org.openqa.selenium.firefox.NotConnectedException: Unable to connect to host 127.0.0.1 on port 7055 after 45000 ms. Firefox console output:
 Potential driver version mismatch ignored due to missing DLLs igd10umd64 v= and igd10iumd64 v=
*** Blocklist::_preloadBlocklistFile: blocklist is disabled

...意味着 GeckoDriver 无法成功启动/生成新的 Web 客户端 session /实例。

您的主要问题是您正在使用的二进制文件之间的版本兼容性，如下所示:

• 您的Selenium 客户端版本是2.45，几乎比2.5年老了。
• 您的GeckoDriver版本是v20.1。
• 0.19.0 (2017-09-16) 的发行说明明确提到了以下内容:

Note that with geckodriver 0.19.0 the following versions are recommended:

• Firefox 55.0 (and greater)
• Selenium 3.5 (and greater)

• 0.16.0 (2017-04-21) 的发行说明明确提到了以下内容:

Note that geckodriver v0.16.0 is only compatible with Selenium 3.4 and greater.

• 您的 Firefox 版本是 v60.0。

因此，Selenium Client v2.45、GeckoDriver v20.1 和 Firefox v60.0 之间存在明显的不匹配。

解决方案

• 将 JDK 升级到最新级别 JDK 8u162 .
• 将Selenium升级到当前级别 Version 3.11.0 .
• 将 GeckoDriver 升级至 GeckoDriver v0.20.1级别。
• GeckoDriver 存在于指定位置。
• GeckoDriver 对非 root 用户具有可执行权限。
• 将 Firefox 版本升级至 Firefox v60.0 级别。
• 通过IDE清理您的项目工作区，并仅使用所需的依赖项重建项目。
• 使用CCleaner工具可以清除执行测试套件之前和之后的所有操作系统杂务。
• 如果您的基本网络客户端版本太旧，请通过 Revo Uninstaller 卸载它并安装最新的 GA 和已发布版本的Web 客户端。
• 重新启动系统。
• 以非 root 用户身份执行测试。
• 始终在 tearDown(){} 方法中调用 driver.quit() 来关闭和销毁 WebDriver 和 Web Client 优雅地实例化。