会话仅在测试过程中失败：
StackTrace：
1532007067797 Marionette TRACE 0 -> [0,53,"WebDriver:ExecuteScript",{"args":[{"ELEMENT":"297d9b77-2267-4509-ba4c-d61f70b59df3","element-6066-11e4-a52e-4f735466ce ... a4c-d61f70b59df3"}],"newSandbox":false,"script":"arguments[0].scrollIntoView();","scriptTimeout":null,"specialPowers":false}]
1532007067809 Marionette TRACE 0 <- [1,53,null,{"value":null}]
1532007067822 webdriver::server DEBUG <- 200 OK {"value":null}
1532007067837 webdriver::server DEBUG -> POST /session/cdb1f349-4f61-4584-b75e-66ef4a48ad3f/element/297d9b77-2267-4509-ba4c-d61f70b59df3/click {
"id": "297d9b77-2267-4509-ba4c-d61f70b59df3"
}
1532007067832 Marionette TRACE 0 -> [0,54,"WebDriver:ElementClick",{"id":"297d9b77-2267-4509-ba4c-d61f70b59df3"}]
1532007068072 Marionette DEBUG Canceled page load listener because no navigation has been detected
1532007068074 Marionette TRACE 0 <- [1,54,null,{}]
1532007068087 webdriver::server DEBUG <- 200 OK {"value": null}
1532007068102 webdriver::server DEBUG -> POST /session/cdb1f349-4f61-4584-b75e-66ef4a48ad3f/frame {
"id": null
}
1532007068092 Marionette TRACE 0 -> [0,55,"WebDriver:SwitchToFrame",{}]
1532007068095 Marionette TRACE 0 <- [1,55,null,{}]
1532007068102 webdriver::server DEBUG <- 200 OK {"value": null}
org.openqa.selenium.NoSuchSessionException: Session ID is null. Using WebDriver after calling quit()?
Build info: version: '3.13.0', revision: '2f0d292', time: '2018-06-25T15:32:14.902Z'
System info: host: 'VPC010037117046', ip: '10.37.117.46', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_162'
Driver info: driver.version: EventFiringWebDriver
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:125)
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:83)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:548)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:605)
at org.openqa.selenium.remote.RemoteWebDriver.getScreenshotAs(RemoteWebDriver.java:294)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.openqa.selenium.support.events.EventFiringWebDriver.lambda$new$1(EventFiringWebDriver.java:105)
at com.sun.proxy.$Proxy10.getScreenshotAs(Unknown Source)
at org.openqa.selenium.support.events.EventFiringWebDriver.getScreenshotAs(EventFiringWebDriver.java:302)
at CommonUtils.TestUtil.captureScreenshot(TestUtil.java:90)
at CommonUtils.TestUtil.executeStep(TestUtil.java:146)
at Tests.TC08_Add_Diff_Phone_Type_Send_Deployment_Mails.executeTest(TC08_Add_Diff_Phone_Type_Send_Deployment_Mails.java:53)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at AutomationLauncher.ExecutionController.testApp(ExecutionController.java:238)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:124)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:580)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:716)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:988)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
at org.testng.TestRunner.privateRun(TestRunner.java:648)
at org.testng.TestRunner.run(TestRunner.java:505)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:455)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:450)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:415)
at org.testng.SuiteRunner.run(SuiteRunner.java:364)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:84)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1208)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1137)
at org.testng.TestNG.runSuites(TestNG.java:1049)
at org.testng.TestNG.run(TestNG.java:1017)
at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:114)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)
1532007068134 webdriver::server DEBUG -> DELETE /session/cdb1f349-4f61-4584-b75e-66ef4a48ad3f
1532007068123 Marionette TRACE 0 -> [0,56,"Marionette:Quit",{"flags":["eForceQuit"]}]
1532007068125 Marionette DEBUG New connections will no longer be accepted
1532007068235 Marionette TRACE 0 <- [1,56,null,{"cause":"shutdown"}]
1532007068290 webdriver::server DEBUG Deleting session
1532007068293 Marionette TRACE 0 -> [0,57,"Marionette:Quit",{"flags":["eForceQuit"]}]
1532007068294 Marionette TRACE 0 <- [1,57,{"error":"invalid session id","message":"","stacktrace":"WebDriverError@chrome://marionette/content/error.js:178:5\nInv ... et@chrome://marionette/content/server.js:241:8\n_onJSONObjectReady/<@chrome://marionette/content/transport.js:500:9\n"},null]
在测试的那部分，我没有退出或关闭驱动程序，但仍然遇到此问题。但是，我确实将驾驶员带入不同的班级（我不确定这是否是一个问题）。另外要注意的是，在异常处理需要一点时间之前，我曾尝试执行此选项。会话可能会超时吗？我已将隐式等待声明为30秒。我需要声明更多超时吗？你能帮忙吗？
版本：
3.13.0 Firefox 60.0.1 壁虎驱动程序：0.21.0