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我试图让 Selenium 在测试时安装扩展。我正在使用最新的独立 JAR ( selenium-server-standalone-2.26.0.jar) 和 Firefox 17 来运行我的测试。当我不尝试添加扩展时，该程序运行良好。

我已经多次验证我尝试使用的扩展文件存在并且可以被程序访问，并且实际上包含有效的 install.rdf，因为我使用它在我的默认 Firefox 配置文件中手动安装扩展。

我的代码是：

FirefoxProfile fp=new FirefoxProfile();
File ext=new File("myext-2.17.xpi");
        try {
            fp.addExtension(ext);
            fp.setPreference("extensions.myext.version", "myext-2.17");
        } catch (Exception e2) {
            e2.printStackTrace();
        }
WebDriver wd=new FirefoxDriver(fp);

完整的堆栈跟踪如下：

Exception in thread "pool-1-thread-2" org.openqa.selenium.WebDriverException: Failed to connect to binary FirefoxBinary(C:\Program Files (x86)\Mozilla Firefox\firefox.exe) on port 7055; process output follows: 
null
Build info: version: '2.26.0', revision: '18041', time: '2012-11-01 19:33:38'
System info: os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.7.0_02'
Driver info: driver.version: FirefoxDriver
    at org.openqa.selenium.firefox.internal.NewProfileExtensionConnection.start(NewProfileExtensionConnection.java:122)
    at org.openqa.selenium.firefox.FirefoxDriver.startClient(FirefoxDriver.java:243)
    at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:109)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:189)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:182)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:178)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:95)
    at TrafficGenerator.BrowserWindow.run(BrowserWindow.java:80)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: org.openqa.selenium.WebDriverException: org.openqa.selenium.WebDriverException: Cannot locate node containing extension id: C:\Users\Vivek\AppData\Local\Temp\unzip3924903411706376479stream\install.rdf
Build info: version: '2.26.0', revision: '18041', time: '2012-11-01 19:33:38'
System info: os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.7.0_02'
Driver info: driver.version: FirefoxDriver
Build info: version: '2.26.0', revision: '18041', time: '2012-11-01 19:33:38'
System info: os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.7.0_02'
Driver info: driver.version: FirefoxDriver
    at org.openqa.selenium.firefox.internal.FileExtension.readIdFromInstallRdf(FileExtension.java:141)
    at org.openqa.selenium.firefox.internal.FileExtension.writeTo(FileExtension.java:60)
    at org.openqa.selenium.firefox.FirefoxProfile.installExtensions(FirefoxProfile.java:465)
    at org.openqa.selenium.firefox.FirefoxProfile.layoutOnDisk(FirefoxProfile.java:443)
    at org.openqa.selenium.firefox.internal.NewProfileExtensionConnection.start(NewProfileExtensionConnection.java:77)
    ... 10 more

使用FF16和FF9也存在错误。关于可能导致错误的原因以及如何修复它的任何想法？

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1 回答 1

-1 
Caused by: org.openqa.selenium.WebDriverException: org.openqa.selenium.WebDriverException: Cannot locate node containing extension id: C:\Users\Vivek\AppData\Local\Temp\unzip3924903411706376479stream\install.rdf

看起来您的扩展在 RDF 描述中缺少必需的“扩展 ID”字段。

您可能会尝试在没有扩展的情况下启动 Firefox，并尝试在没有 selenium 的正在运行的 Firefox 中安装扩展。

于 2012-12-14T08:09:18.893 回答