Selenium 3 + gecko driver won't launch any browser

[Alex Strusberg]

Hi,

I am running for a long time with selenium 2 but now that I upgraded to selenium 3 I am facing difficulties and i will appreciate any help.

On my dev machine I have : selenium 3.4.1

On the hub machine I have : selenium-server-standalone-3.4.0.jar which i am launching as follows:

java -jar selenium-server-standalone-3.4.0.jar -role hub -host 192.168.192.155 -port 4444

On the node machine i am starting each node as follows: 

java -Dwebdriver.gecko.driver=c:\selenium\geckodriver.exe -jar selenium-server-standalone-3.4.0.jar -role node -hub http://192.168.192.155:4444/grid/register -port 6558 -browser browserName=firefox,platform=WINDOWS,maxInstances=5,applicationName=qaCoreFrontEnd -maxSession 5 -host 192.168.162.79 

pause

java -Dwebdriver.chrome.driver=c:\selenium\chromedriver.exe -jar selenium-server-standalone-3.4.0.jar -role node -hub http://192.168.192.155:4444/grid/register -port 6557 -browser browserName=chrome,platform=WINDOWS,maxInstances=5,applicationName=qaCoreFrontEnd -maxSession 5 -host 192.168.162.79

geko driver v0.16.1

chrome driver 2.29

ff 53.02 and chrome 58 on windows 8.1

my test code is:

from selenium import webdriver

webdriver.Remote(command_executor="http://il-SeleniumHub-qa.dev.kaltura.com:4444/wd/hub", 

                 desired_capabilities={

                     'browserName': "chrome"

                     }

                )

i am getting an exception:

raise exception_class(message, screen, stacktrace)

selenium.common.exceptions.WebDriverException: Message: None

Stacktrace:

    at java.util.HashMap.putMapEntries (HashMap.java:500)

    at java.util.HashMap.putAll (HashMap.java:784)

    at org.openqa.selenium.remote.DesiredCapabilities.<init> (DesiredCapabilities.java:55)

    at org.openqa.grid.web.servlet.handler.RequestHandler.process (RequestHandler.java:104)

    at org.openqa.grid.web.servlet.DriverServlet.process (DriverServlet.java:83)

    at org.openqa.grid.web.servlet.DriverServlet.doPost (DriverServlet.java:67)

    at javax.servlet.http.HttpServlet.service (HttpServlet.java:707)

    at javax.servlet.http.HttpServlet.service (HttpServlet.java:790)

    at org.seleniumhq.jetty9.servlet.ServletHolder.handle (ServletHolder.java:841)

    at org.seleniumhq.jetty9.servlet.ServletHandler.doHandle (ServletHandler.java:543)

    at org.seleniumhq.jetty9.server.handler.ScopedHandler.nextHandle (ScopedHandler.java:188)

    at org.seleniumhq.jetty9.server.session.SessionHandler.doHandle (SessionHandler.java:1584)

    at org.seleniumhq.jetty9.server.handler.ScopedHandler.nextHandle (ScopedHandler.java:188)

    at org.seleniumhq.jetty9.server.handler.ContextHandler.doHandle (ContextHandler.java:1228)

    at org.seleniumhq.jetty9.server.handler.ScopedHandler.nextScope (ScopedHandler.java:168)

    at org.seleniumhq.jetty9.servlet.ServletHandler.doScope (ServletHandler.java:481)

    at org.seleniumhq.jetty9.server.session.SessionHandler.doScope (SessionHandler.java:1553)

    at org.seleniumhq.jetty9.server.handler.ScopedHandler.nextScope (ScopedHandler.java:166)

    at org.seleniumhq.jetty9.server.handler.ContextHandler.doScope (ContextHandler.java:1130)

    at org.seleniumhq.jetty9.server.handler.ScopedHandler.handle (ScopedHandler.java:141)

    at org.seleniumhq.jetty9.server.handler.HandlerWrapper.handle (HandlerWrapper.java:132)

    at org.seleniumhq.jetty9.server.Server.handle (Server.java:564)

    at org.seleniumhq.jetty9.server.HttpChannel.handle (HttpChannel.java:320)

    at org.seleniumhq.jetty9.server.HttpConnection.onFillable (HttpConnection.java:251)

    at org.seleniumhq.jetty9.io.AbstractConnection$ReadCallback.succeeded (AbstractConnection.java:279)

    at org.seleniumhq.jetty9.io.FillInterest.fillable (FillInterest.java:112)

    at org.seleniumhq.jetty9.io.ChannelEndPoint$2.run (ChannelEndPoint.java:124)

    at org.seleniumhq.jetty9.util.thread.Invocable.invokePreferred (Invocable.java:122)

    at org.seleniumhq.jetty9.util.thread.strategy.ExecutingExecutionStrategy.invoke (ExecutingExecutionStrategy.java:58)

    at org.seleniumhq.jetty9.util.thread.strategy.ExecuteProduceConsume.produceConsume (ExecuteProduceConsume.java:201)

    at org.seleniumhq.jetty9.util.thread.strategy.ExecuteProduceConsume.run (ExecuteProduceConsume.java:133)

    at org.seleniumhq.jetty9.util.thread.QueuedThreadPool.runJob (QueuedThreadPool.java:672)

    at org.seleniumhq.jetty9.util.thread.QueuedThreadPool$2.run (QueuedThreadPool.java:590)

    at java.lang.Thread.run (Thread.java:748)

i found an article that suggests to remove wd/hub from the command_executor url but then i am getting another exception:

Traceback (most recent call last):

  File "C:\Users\alex.strusberg\.p2\pool\plugins\org.python.pydev_5.7.0.201704111357\pysrc\pydevd.py", line 1546, in <module>

    globals = debugger.run(setup['file'], None, None, is_module)

  File "C:\Users\alex.strusberg\.p2\pool\plugins\org.python.pydev_5.7.0.201704111357\pysrc\pydevd.py", line 982, in run

    pydev_imports.execfile(file, globals, locals)  # execute the script

  File "C:\Users\alex.strusberg\.p2\pool\plugins\org.python.pydev_5.7.0.201704111357\pysrc\_pydev_imps\_pydev_execfile.py", line 25, in execfile

    exec(compile(contents+"\n", file, 'exec'), glob, loc)

  File "C:\dev\front-automation\tests\analytics\googleAnalytics\test_500.py", line 5, in <module>

    'browserName': "chrome"

  File "C:\Python34\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 98, in __init__

    self.start_session(desired_capabilities, browser_profile)

  File "C:\Python34\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 191, in start_session

    self.session_id = response['sessionId']

TypeError: string indices must be integers

will appreciate any help,

thanks a lot

[Alex Strusberg]

when i switched to selenium driver 3.3.0 , all works as expected

[Andreas Tolfsen]

Could you post a trace-level log from geckodriver? It’s hard to
tell without looking at what instructions are sent from Selenium to
geckodriver.