How to solve SessionNotCreatedException exception when trying to create FIREFOX driver on LINUX through Selenium Grid standalone jar 3.14

Question

I am getting org.openqa.selenium.SessionNotCreatedException exception when trying to create driver through Selenium standalone jar 3.14.

I have used below commands to start hub and node

1) java -jar selenium-server-standalone-3.141.59.jar -role hub

2) java -jar selenium-server-standalone-3.141.59.jar -role webdriver -hub http://192.xxx.xx.xxx:4444/grid/register -port 5556 -browser browserName=chrome,maxInstance=3 -browser browserName=firefox,maxInstance=3

Trying to create driver through below code

System.setProperty("webdriver.gecko.driver",
System.getProperty("user.dir") + "/drivers/" +"geckodriver");
DesiredCapabilities caps = DesiredCapabilities.firefox();
caps.setBrowserName("firefox");
caps.setPlatform(Platform.LINUX);
caps.setVersion("64.0");
driver = new RemoteWebDriver(new URL("http://192.xxx.xx.xxx:4444/wd/hub"),caps);

I am getting below exception:

org.openqa.selenium.SessionNotCreatedException: Unable to create new remote session. desired capabilities = Capabilities [{browserName=firefox, moz:firefoxOptions={binary=Optional.empty, args=[], legacy=null, logLevel=null, prefs={}, profile=null}, platform=LINUX}], required capabilities = Capabilities [{}]
Build info: version: '3.3.1', revision: '5234b325d5', time: '2017-03-10 09:10:29 +0000'
System info: host: 'HP-ProBook-440-G5', ip: '127.0.1.1', os.name: 'Linux', os.arch: 'amd64', os.version: '4.15.0-43-generic', java.version: '1.8.0_181'
Driver info: driver.version: RemoteWebDriver
 at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:126)
 at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:141)
 at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:604)
 at org.openqa.selenium.remote.RemoteWebDriver.startSession(RemoteWebDriver.java:244)
 at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:131)
 at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:158)
 at com.jio.web.base.TestBase.initDriver(TestBase.java:290)
 at com.jio.web.base.Setup.assignDriver(Setup.java:54)
 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.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:86)
 at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:514)
 at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:215)
 at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:142)
 at org.testng.internal.TestMethodWorker.invokeBeforeClassMethods(TestMethodWorker.java:178)
 at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)
 at org.testng.TestRunner.privateRun(TestRunner.java:782)
 at org.testng.TestRunner.run(TestRunner.java:632)
 at org.testng.SuiteRunner.runTest(SuiteRunner.java:366)
 at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:361)
 at org.testng.SuiteRunner.privateRun(SuiteRunner.java:319)
 at org.testng.SuiteRunner.run(SuiteRunner.java:268)
 at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
 at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
 at org.testng.TestNG.runSuitesSequentially(TestNG.java:1244)
 at org.testng.TestNG.runSuitesLocally(TestNG.java:1169)
 at org.testng.TestNG.run(TestNG.java:1064)
 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)

• undetected Selenium: Only exception won't help us as it is a part of the error which you have mis-configured. You need to provide us the version info programatically (preferably through CLI)

Answer 1

As your Selenium Grid Node is using geckodriver to communicate with the Selenium Grid Hub, so you need to initiate the Selenium Grid Node with the absolute location of the geckodriver as follows:

java -Dwebdriver.gecko.driver=/path/to/geckodriver -jar selenium-server-standalone-3.141.59.jar -role webdriver -hub http://192.xxx.xx.xxx:4444/grid/register -port 5556 -browser browserName=chrome,maxInstance=3 -browser browserName=firefox,maxInstance=3

• Deolas: I tried this also but still getting same issue org.openqa.selenium.SessionNotCreatedException: Error forwarding the new session cannot find : Capabilities {browserName: firefox, marionette: true, platform: LINUX, version: 64.0}
• undetected Selenium: Update the question with browserName, platform and version information along with the commands you have used to start the Hub and Node
• jitendra gupta: if Suppose there are 20 node then do we have to pass the path of gecko.driver on each node ? I have a scenario where I have to execute the test case on IE,FF, Chrome of each node from selenium hub ?
• undetected Selenium: @jitendragupta You can pass multiple variants of WebDriver.