Throws SessionNotCreatedException While running test in Firefox

Question

I am using below Version:

Selenium: 3.6.0
Mozilla: 56.0
Gecko Driver: V 0.19.0

When I run testng.xml file for mozilla firefox, it throws this exception:

Log: org.openqa.selenium.SessionNotCreatedException: Unable to create new remote session. desired capabilities = Capabilities [{marionette=true, binary=C:\Program Files (x86)\Mozilla Firefox\firefox.exe, browserName=firefox, moz:firefoxOptions={binary=Optional[FirefoxBinary(C:\Program Files\Mozilla Firefox\firefox.exe)], args=[], legacy=null, logLevel=null, prefs={}, profile=null}, version=, platform=ANY}], required capabilities = Capabilities [{}] Build info: version: 'unknown', revision: 'b526bd5', time: '2017-03-07 11:11:07 -0800' System info: host: 'LAPTOP-HS6HUVRH', ip: '9.124.94.212', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_151' Driver info: driver.version: FirefoxDriver 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.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:82) 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.(RemoteWebDriver.java:131) at org.openqa.selenium.firefox.FirefoxDriver.(FirefoxDriver.java:243) at org.openqa.selenium.firefox.FirefoxDriver.(FirefoxDriver.java:121) at org.openqa.selenium.firefox.FirefoxDriver.(FirefoxDriver.java:164) at com.drlive.base.BaseTest.initApplication(BaseTest.java:126) 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:108) at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:523) at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:224) at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:146) at org.testng.internal.TestMethodWorker.invokeBeforeClassMethods(TestMethodWorker.java:166) at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:105) at org.testng.TestRunner.privateRun(TestRunner.java:744) at org.testng.TestRunner.run(TestRunner.java:602) at org.testng.SuiteRunner.runTest(SuiteRunner.java:380) at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:375) at org.testng.SuiteRunner.privateRun(SuiteRunner.java:340) at org.testng.SuiteRunner.run(SuiteRunner.java:289) at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52) at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86) at org.testng.TestNG.runSuitesSequentially(TestNG.java:1301) at org.testng.TestNG.runSuitesLocally(TestNG.java:1226) at org.testng.TestNG.runSuites(TestNG.java:1144) at org.testng.TestNG.run(TestNG.java:1115) 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)

Code:

if(browser.equalsIgnoreCase("firefox")) { 
DesiredCapabilities capabilities = DesiredCapabilities.firefox(); 
capabilities.setCapability("marionette", true);
capabilities.setCapability("platform", Platform.ANY);
capabilities.setCapability("binary", "C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe"); 
driver=new FirefoxDriver(capabilities);
}

if(browser.equalsIgnoreCase("firefox")) { DesiredCapabilities capabilities = DesiredCapabilities.firefox(); capabilities.setCapability("marionette", true); capabilities.setCapability("platform", Platform.ANY); capabilities.setCapability("binary", "C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe"); driver=new FirefoxDriver(capabilities); — Aparajita Kumari
Always paste your code by editing your current question description and updating that. I have suggested a solution just try it. — Alok

Alok Alok · Accepted Answer · 2018-01-16T14:14:18

I think you have not updated the path for the gecko driver before initializing the FirefoxDriver() so

1st: you need to download the geckodriver to run Firefox. Download Link for Gecko Driver
2nd: you can need to set the path for the geckodriver before initiating the driver.

So your code should look something like this.

System.setProperty("webdriver.gecko.driver", "c:/path_to_driver/geckodriver.exe");
driver = new FirefoxDriver();

Throws SessionNotCreatedException While running test in Firefox

2 Answers