org.openqa.selenium.StaleElementReferenceException: stale element reference: element is not attached to the page document (Session info: chrome=49.0.2623.110) (Driver info: chromedriver=2.21.371459 (36d3d07f660ff2bc1bf28a75d1cdabed0983e7c4),platform=Mac OS X 10.11.3 x86_64) (WARNING: The server did not provide any stacktrace information) Command duration or timeout: 42 milliseconds For documentation on this error, please visit: http://seleniumhq.org/exceptions/stale_element_reference.html Build info: version: '2.53.0', revision: '35ae25b', time: '2016-03-15 17:00:58' System info: host: '13.local', ip: '192.168.0.3', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.11.3', java.version: '1.7.0_75' Session ID: 0b722a4c0d36eed5aa856fc859151ea9 Driver info: org.openqa.selenium.chrome.ChromeDriver Capabilities [{platform=MAC, acceptSslCerts=true, javascriptEnabled=true, browserName=chrome, chrome={userDataDir=/var/folders/39/2gckmzs959l7x2y1rn_cp9tc0000gn/T/.org.chromium.Chromium.5Wg63U, chromedriverVersion=2.21.371459 (36d3d07f660ff2bc1bf28a75d1cdabed0983e7c4)}, rotatable=false, locationContextEnabled=true, mobileEmulationEnabled=false, version=49.0.2623.110, takesHeapSnapshot=true, cssSelectorsEnabled=true, databaseEnabled=false, handlesAlerts=true, browserConnectionEnabled=false, webStorageEnabled=true, nativeEvents=true, hasTouchScreen=false, applicationCacheEnabled=false, takesScreenshot=true}]

GitHub | qualityshepherd | 12 months ago
tip
Click on the to mark the solution that helps you, Samebug will learn from it.
As a community member, you’ll be rewarded for you help.
  1. 0

    Stale Element error is not beight caught

    GitHub | 12 months ago | qualityshepherd
    org.openqa.selenium.StaleElementReferenceException: stale element reference: element is not attached to the page document (Session info: chrome=49.0.2623.110) (Driver info: chromedriver=2.21.371459 (36d3d07f660ff2bc1bf28a75d1cdabed0983e7c4),platform=Mac OS X 10.11.3 x86_64) (WARNING: The server did not provide any stacktrace information) Command duration or timeout: 42 milliseconds For documentation on this error, please visit: http://seleniumhq.org/exceptions/stale_element_reference.html Build info: version: '2.53.0', revision: '35ae25b', time: '2016-03-15 17:00:58' System info: host: '13.local', ip: '192.168.0.3', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.11.3', java.version: '1.7.0_75' Session ID: 0b722a4c0d36eed5aa856fc859151ea9 Driver info: org.openqa.selenium.chrome.ChromeDriver Capabilities [{platform=MAC, acceptSslCerts=true, javascriptEnabled=true, browserName=chrome, chrome={userDataDir=/var/folders/39/2gckmzs959l7x2y1rn_cp9tc0000gn/T/.org.chromium.Chromium.5Wg63U, chromedriverVersion=2.21.371459 (36d3d07f660ff2bc1bf28a75d1cdabed0983e7c4)}, rotatable=false, locationContextEnabled=true, mobileEmulationEnabled=false, version=49.0.2623.110, takesHeapSnapshot=true, cssSelectorsEnabled=true, databaseEnabled=false, handlesAlerts=true, browserConnectionEnabled=false, webStorageEnabled=true, nativeEvents=true, hasTouchScreen=false, applicationCacheEnabled=false, takesScreenshot=true}]
  2. 0

    GitHub comment 1635#252285670

    GitHub | 6 months ago | si-mikey
    org.openqa.selenium.StaleElementReferenceException: The element reference is stale. Either the element is no longer attached to the DOM or the page has been refreshed. For documentation on this error, please visit: http://seleniumhq.org/exceptions/stale_element_reference.html Build info: version: '3.0.0-beta4', revision: '3169782', time: '2016-09-29 10:29:23 -0700' System info: host: 'ip-192-168-20-112.ec2.internal', ip: '192.168.20.112', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.11.4', java.version: '1.8.0_102' Driver info: org.openqa.selenium.firefox.FirefoxDriver Capabilities [{raisesAccessibilityExceptions=false, loggingPrefs={driver=ALL, browser=ALL}, appBuildId=20160922113459, platform=MAC, requestOrigins={name=webdriverio, version=4.2.16, url=http://webdriver.io}, specificationLevel=0, acceptSslCerts=false, processId=60826, browserVersion=49.0.1, platformVersion=15.4.0, XULappId={ec8030f7-c20a-464f-9b0e-13a3a9e97384}, browserName=firefox, takesScreenshot=true, javascriptEnabled=true, maxInstances=4, platformName=darwin, rotatable=false, firefoxOptions={args=[], profile=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}, handlesAlerts=true, version=49.0.1, proxy={}, command_id=1, locationContextEnabled=true, takesElementScreenshot=true, device=desktop, firefox_profile=UEsDBBQACAAIAEGpRkkAAAAAAAAAA...}] Session ID: 6b95569d-c5c8-a747-a76d-6ff79863630e
  3. 0

    Cucumberjs errors out with 'element is not attached to the page document'

    GitHub | 1 year ago | YashdalfTheGray
    org.openqa.selenium.StaleElementReferenceException: stale element reference: element is not attached to the page document (Session info: chrome=48.0.2564.116) (Driver info: chromedriver=2.20.353124 (035346203162d32c80f1dce587c8154a1efa0c3b),platform=Mac OS X 10.11.3 x86_64) (WARNING: The server did not provide any stacktrace information) Command duration or timeout: 21 milliseconds For documentation on this error, please visit: http://seleniumhq.org/exceptions/stale_element_reference.html Build info: version: '2.48.2', revision: '41bccdd', time: '2015-10-09 19:59:12' System info: host: 'Yashs-MBP-2', ip: '192.168.1.200', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.11.3', java.version: '1.8.0_74' Driver info: org.openqa.selenium.chrome.ChromeDriver Capabilities [{applicationCacheEnabled=false, rotatable=false, mobileEmulationEnabled=false, chrome={userDataDir=/var/folders/dh/229j4j150wx04wrjtw9bh6l00000gn/T/.org.chromium.Chromium.RrnUOz}, takesHeapSnapshot=true, databaseEnabled=false, handlesAlerts=true, hasTouchScreen=false, version=48.0.2564.116, platform=MAC, browserConnectionEnabled=false, nativeEvents=true, acceptSslCerts=true, locationContextEnabled=true, webStorageEnabled=true, browserName=chrome, takesScreenshot=true, javascriptEnabled=true, cssSelectorsEnabled=true}] Session ID: c0d4eb784322e9385ba583cf5896ee91
  4. Speed up your debug routine!

    Automated exception search integrated into your IDE

  5. 0

    If statement Loop Break in selenium code

    Stack Overflow | 9 months ago | TCC
    org.openqa.selenium.StaleElementReferenceException: Element is no longer valid (WARNING: The server did not provide any stacktrace information) Command duration or timeout: 14 milliseconds For documentation on this error, please visit: http://seleniumhq.org/exceptions/stale_element_reference.html Build info: version: '2.53.0', revision: '35ae25b', time: '2016-03-15 16:57:40' System info: host: 'PN4506252', ip: '138.220.162.98', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_91' Driver info: org.openqa.selenium.ie.InternetExplorerDriver Capabilities [{browserAttachTimeout=0, enablePersistentHover=true, ie.forceCreateProcessApi=false, pageLoadStrategy=normal, ie.usePerProcessProxy=false, ignoreZoomSetting=false, handlesAlerts=true, version=11, platform=WINDOWS, nativeEvents=true, ie.ensureCleanSession=false, elementScrollBehavior=0, ie.browserCommandLineSwitches=, requireWindowFocus=false, browserName=internet explorer, initialBrowserUrl=http://localhost:44629/, takesScreenshot=true, javascriptEnabled=true, ignoreProtectedModeSettings=false, enableElementCacheCleanup=true, cssSelectorsEnabled=true, unexpectedAlertBehaviour=dismiss}] Session ID: 37e633cf-7f23-4704-8177-d5dd48005047
  6. 0

    {noformat} Element is no longer attached to the DOM System info: os.name: 'Linux', os.arch: 'amd64', os.version: '2.6.27.10-grsec-xxxx-grs-ipv4-64', java.version: '1.6.0_25' Driver info: driver.version: RemoteWebDriver Stacktrace org.openqa.selenium.StaleElementReferenceException: Element is no longer attached to the DOM System info: os.name: 'Linux', os.arch: 'amd64', os.version: '2.6.27.10-grsec-xxxx-grs-ipv4-64', java.version: '1.6.0_25' Driver info: driver.version: RemoteWebDriver at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:131) at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:105) at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:395) at org.openqa.selenium.remote.RemoteWebElement.execute(RemoteWebElement.java:195) at org.openqa.selenium.remote.RemoteWebElement.getText(RemoteWebElement.java:105) at org.xwiki.test.ui.framework.elements.RegisterPage.validationFailureMessagesInclude(RegisterPage.java:112) at org.xwiki.test.ui.RegisterTest.testRegisterEmptyPassword(RegisterTest.java:132) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.junit.runners.Suite.runChild(Suite.java:128) at org.junit.runners.Suite.runChild(Suite.java:24) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.junit.extensions.cpsuite.ClasspathSuite.run(ClasspathSuite.java:194) at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:35) at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:115) at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:97) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.maven.surefire.booter.ProviderFactory$ClassLoaderProxy.invoke(ProviderFactory.java:103) at $Proxy0.invoke(Unknown Source) at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:150) at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcess(SurefireStarter.java:91) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:69) Caused by: org.openqa.selenium.remote.ErrorHandler$UnknownServerException: Element is no longer attached to the DOM System info: os.name: 'Linux', os.arch: 'amd64', os.version: '2.6.27.10-grsec-xxxx-grs-ipv4-64', java.version: '1.6.0_25' Driver info: driver.version: unknown at <anonymous class>.WebDriverError(file:///tmp/anonymous1478603787594974079webdriver-profile/extensions/fxdriver@googlecode.com/resource/modules/utils.js:7081) at <anonymous class>.<anonymous method>(file:///tmp/anonymous1478603787594974079webdriver-profile/extensions/fxdriver@googlecode.com/resource/modules/utils.js:7195) at <anonymous class>.<anonymous method>(file:///tmp/anonymous1478603787594974079webdriver-profile/extensions/fxdriver@googlecode.com/components/driver-component.js -> file:///tmp/anonymous1478603787594974079webdriver-profile/extensions/fxdriver@googlecode.com/components/wrappedElement.js:125) at <anonymous class>.<anonymous method>(file:///tmp/anonymous1478603787594974079webdriver-profile/extensions/fxdriver@googlecode.com/resource/modules/atoms.js:277) at <anonymous class>.<anonymous method>(file:///tmp/anonymous1478603787594974079webdriver-profile/extensions/fxdriver@googlecode.com/components/nsCommandProcessor.js:299) at <anonymous class>.<anonymous method>(file:///tmp/anonymous1478603787594974079webdriver-profile/extensions/fxdriver@googlecode.com/components/nsCommandProcessor.js:313) at <anonymous class>.<anonymous method>(file:///tmp/anonymous1478603787594974079webdriver-profile/extensions/fxdriver@googlecode.com/components/nsCommandProcessor.js:190) {noformat}

    XWiki.org JIRA | 6 years ago | CalebJamesDeLisle
    org.openqa.selenium.StaleElementReferenceException: Element is no longer attached to the DOM System info: os.name: 'Linux', os.arch: 'amd64', os.version: '2.6.27.10-grsec-xxxx-grs-ipv4-64', java.version: '1.6.0_25' Driver info: driver.version: RemoteWebDriver

  1. raytest 6 times, last 3 weeks ago
1 unregistered visitors
Not finding the right solution?
Take a tour to get the most out of Samebug.

Tired of useless tips?

Automated exception search integrated into your IDE

Root Cause Analysis

  1. org.openqa.selenium.StaleElementReferenceException

    stale element reference: element is not attached to the page document (Session info: chrome=49.0.2623.110) (Driver info: chromedriver=2.21.371459 (36d3d07f660ff2bc1bf28a75d1cdabed0983e7c4),platform=Mac OS X 10.11.3 x86_64) (WARNING: The server did not provide any stacktrace information) Command duration or timeout: 42 milliseconds For documentation on this error, please visit: http://seleniumhq.org/exceptions/stale_element_reference.html Build info: version: '2.53.0', revision: '35ae25b', time: '2016-03-15 17:00:58' System info: host: '13.local', ip: '192.168.0.3', os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.11.3', java.version: '1.7.0_75' Session ID: 0b722a4c0d36eed5aa856fc859151ea9 Driver info: org.openqa.selenium.chrome.ChromeDriver Capabilities [{platform=MAC, acceptSslCerts=true, javascriptEnabled=true, browserName=chrome, chrome={userDataDir=/var/folders/39/2gckmzs959l7x2y1rn_cp9tc0000gn/T/.org.chromium.Chromium.5Wg63U, chromedriverVersion=2.21.371459 (36d3d07f660ff2bc1bf28a75d1cdabed0983e7c4)}, rotatable=false, locationContextEnabled=true, mobileEmulationEnabled=false, version=49.0.2623.110, takesHeapSnapshot=true, cssSelectorsEnabled=true, databaseEnabled=false, handlesAlerts=true, browserConnectionEnabled=false, webStorageEnabled=true, nativeEvents=true, hasTouchScreen=false, applicationCacheEnabled=false, takesScreenshot=true}]

    at sun.reflect.GeneratedConstructorAccessor23.newInstance()
  2. Java RT
    Constructor.newInstance
    1. sun.reflect.GeneratedConstructorAccessor23.newInstance(Unknown Source)
    2. sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    3. java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    3 frames
  3. Selenium
    RemoteWebElement.getText
    1. org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:206)
    2. org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:158)
    3. org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:678)
    4. org.openqa.selenium.remote.RemoteWebElement.execute(RemoteWebElement.java:327)
    5. org.openqa.selenium.remote.RemoteWebElement.getText(RemoteWebElement.java:179)
    5 frames
  4. Java RT
    Method.invoke
    1. sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source)
    2. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    3. java.lang.reflect.Method.invoke(Method.java:606)
    3 frames
  5. selenium-support
    EventFiringWebDriver$EventFiringWebElement$1.invoke
    1. org.openqa.selenium.support.events.EventFiringWebDriver$EventFiringWebElement$1.invoke(EventFiringWebDriver.java:335)
    1 frame
  6. com.sun.proxy
    $Proxy2.getText
    1. com.sun.proxy.$Proxy2.getText(Unknown Source)
    1 frame
  7. selenium-support
    EventFiringWebDriver$EventFiringWebElement.getText
    1. org.openqa.selenium.support.events.EventFiringWebDriver$EventFiringWebElement.getText(EventFiringWebDriver.java:385)
    1 frame
  8. Java RT
    Method.invoke
    1. sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source)
    2. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    3. java.lang.reflect.Method.invoke(Method.java:606)
    3 frames
  9. selenium-server
    KnownElements$1.invoke
    1. org.openqa.selenium.remote.server.KnownElements$1.invoke(KnownElements.java:64)
    1 frame
  10. com.sun.proxy
    $Proxy3.getText
    1. com.sun.proxy.$Proxy3.getText(Unknown Source)
    1 frame
  11. selenium-server
    GetElementText.call
    1. org.openqa.selenium.remote.server.handler.GetElementText.call(GetElementText.java:30)
    2. org.openqa.selenium.remote.server.handler.GetElementText.call(GetElementText.java:1)
    2 frames
  12. Java RT
    FutureTask.run
    1. java.util.concurrent.FutureTask.run(FutureTask.java:262)
    1 frame
  13. selenium-server
    DefaultSession$1.run
    1. org.openqa.selenium.remote.server.DefaultSession$1.run(DefaultSession.java:176)
    1 frame
  14. Java RT
    Thread.run
    1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    3. java.lang.Thread.run(Thread.java:745)
    3 frames