使用 Selenium 3.0.0-beta3 的 Geckodriver 启动 Firefox 41 失败
Failed to launch Firefox 41 with Geckodriver using Selenium 3.0.0-beta3
我 运行 使用 WebDriver 进行了一些快速测试。我降低了 FirefoxWebDriver 和 ChromeWebDriver； geckodriver-v0.10.0-win64.zip 和 chromedriver_win32.zip.
它们被提取到路径位置并相应地重命名； wires.exe 和 chromedriver.exe 分别。
当我创建测试时，做了如下操作：
DesiredCapabilities cap = DesiredCapabilities.firefox();
cap.setCapability("marionette", true);
WebDriver driver = new FirefoxDriver(cap);
//WebDriver driver = new ChromeDriver(DeesiredCapabilities.chrome());
并且对于 Firefox，它未能创建会话（并且未通过测试），而 chrome 成功并通过了测试。
测试的输出如下：
Sep 28, 2016 2:51:32 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Attempting bi-dialect session, assuming Postel's Law holds true on the remote end
Sep 28, 2016 2:51:38 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Falling back to straight W3C remote end connection
Sep 28, 2016 2:51:44 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Falling back to original OSS JSON Wire Protocol.
org.openqa.selenium.remote.UnreachableBrowserException: Could not start a new session. Possible causes are invalid address of the remote server or browser start-up failure.
Build info: version: 'unknown', revision: 'c7b525d', time: '2016-09-01 14:57:44 -0700'
System info: host: 'CHI-CS-55DXX52', ip: '10.60.68.15', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_77'
Driver info: driver.version: FirefoxDriver
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:618)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:242)
at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:129)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:231)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:219)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:214)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:131)
at com.polymerdart.webdriver.MyFirstTest.startWebDriver(MyFirstTest.java:21)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access[=11=]0(ParentRunner.java:58)
at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:262)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:84)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
Caused by: org.openqa.selenium.SessionNotCreatedException: Unable to create new remote session. desired capabilities = Capabilities [{marionette=true, browserName=firefox, version=, platform=ANY}], required capabilities = Capabilities [{}]
Build info: version: 'unknown', revision: 'c7b525d', time: '2016-09-01 14:57:44 -0700'
System info: host: 'CHI-CS-55DXX52', ip: '10.60.68.15', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_77'
Driver info: driver.version: FirefoxDriver
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:80)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:141)
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:82)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:597)
... 34 more
我确实看到 Firefox 正在打开，但它无法创建会话并关闭。我目前 运行 在这台机器上 Firefox version 41.0
这是Selenium3和Mozilla Firefox版本之间的不兼容问题。
实际上 Selenium3 支持可执行文件 geckodriver to launch Mozilla Firefox just like other driver now but executable geckodriver compatible with Mozilla Firefox >= v47，这就是你遇到麻烦的原因。
有两种方法可以解决这个问题：-
也将您的 selenium 版本降级到 Selenium2。
同时升级您的 Mozilla Firefox >= v47 并尝试使用 Selenium3 并启动 FirefoxDriver，如下所示：-
//Set system property with downloaded executable geckodriver from your system location
DesiredCapabilities cap = DesiredCapabilities.firefox();
cap.setCapability("marionette", true);
WebDriver driver = new FirefoxDriver(cap);
我 运行 使用 WebDriver 进行了一些快速测试。我降低了 FirefoxWebDriver 和 ChromeWebDriver； geckodriver-v0.10.0-win64.zip 和 chromedriver_win32.zip.
它们被提取到路径位置并相应地重命名； wires.exe 和 chromedriver.exe 分别。
当我创建测试时，做了如下操作：
DesiredCapabilities cap = DesiredCapabilities.firefox();
cap.setCapability("marionette", true);
WebDriver driver = new FirefoxDriver(cap);
//WebDriver driver = new ChromeDriver(DeesiredCapabilities.chrome());
并且对于 Firefox，它未能创建会话（并且未通过测试），而 chrome 成功并通过了测试。
测试的输出如下：
Sep 28, 2016 2:51:32 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Attempting bi-dialect session, assuming Postel's Law holds true on the remote end
Sep 28, 2016 2:51:38 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Falling back to straight W3C remote end connection
Sep 28, 2016 2:51:44 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Falling back to original OSS JSON Wire Protocol.
org.openqa.selenium.remote.UnreachableBrowserException: Could not start a new session. Possible causes are invalid address of the remote server or browser start-up failure.
Build info: version: 'unknown', revision: 'c7b525d', time: '2016-09-01 14:57:44 -0700'
System info: host: 'CHI-CS-55DXX52', ip: '10.60.68.15', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_77'
Driver info: driver.version: FirefoxDriver
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:618)
at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:242)
at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:129)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:231)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:219)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:214)
at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:131)
at com.polymerdart.webdriver.MyFirstTest.startWebDriver(MyFirstTest.java:21)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access[=11=]0(ParentRunner.java:58)
at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:117)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:42)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:262)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:84)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
Caused by: org.openqa.selenium.SessionNotCreatedException: Unable to create new remote session. desired capabilities = Capabilities [{marionette=true, browserName=firefox, version=, platform=ANY}], required capabilities = Capabilities [{}]
Build info: version: 'unknown', revision: 'c7b525d', time: '2016-09-01 14:57:44 -0700'
System info: host: 'CHI-CS-55DXX52', ip: '10.60.68.15', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_77'
Driver info: driver.version: FirefoxDriver
at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:80)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:141)
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:82)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:597)
... 34 more
我确实看到 Firefox 正在打开，但它无法创建会话并关闭。我目前 运行 在这台机器上 Firefox version 41.0
这是Selenium3和Mozilla Firefox版本之间的不兼容问题。
实际上 Selenium3 支持可执行文件 geckodriver to launch Mozilla Firefox just like other driver now but executable geckodriver compatible with Mozilla Firefox >= v47，这就是你遇到麻烦的原因。
有两种方法可以解决这个问题：-
也将您的 selenium 版本降级到
Selenium2。同时升级您的
Mozilla Firefox >= v47并尝试使用Selenium3并启动FirefoxDriver，如下所示：-//Set system property with downloaded executable geckodriver from your system location DesiredCapabilities cap = DesiredCapabilities.firefox(); cap.setCapability("marionette", true); WebDriver driver = new FirefoxDriver(cap);