CODEWITHSUNDEEP
seleniumfirefoxselenium-webdriverwebdrivergeckodriver
Vishnu Prasanth
Vishnu Prasanth

Reputation: 3

org.openqa.selenium.SessionNotCreatedException: Unable to find a matching set of capabilities with Selenium v3.14.0 and GeckoDriver v0.23.0

My versions are selenium-java-3.14.0 and geckodriver-v0.23.0-win64. I am using the following code.

WebDriver driver;
System.setProperty("webdriver.gecko.driver", "D:\\\\Try out files\\\\geckodriver.exe");
driver = new FirefoxDriver();
String baseURL = "http://www.google.com";
driver.get(baseURL);

When I run it, I get the following error message.

Exception in thread "main" org.openqa.selenium.SessionNotCreatedException: Unable to find a matching set of capabilities
Build info: version: '3.14.0', revision: 'aacccce0', time: '2018-08-02T20:05:20.749Z'
System info: host: '*******', ip: '*****`enter code here`', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '1.8.0_151'
Driver info: driver.version: FirefoxDriver
remote stacktrace: 
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
    at java.lang.reflect.Constructor.newInstance(Unknown Source)
    at org.openqa.selenium.remote.W3CHandshakeResponse.lambda$new$0(W3CHandshakeResponse.java:57)
    at org.openqa.selenium.remote.W3CHandshakeResponse.lambda$getResponseFunction$2(W3CHandshakeResponse.java:104)
    at org.openqa.selenium.remote.ProtocolHandshake.lambda$createSession$0(ProtocolHandshake.java:122)
    at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source)
    at java.util.Spliterators$ArraySpliterator.tryAdvance(Unknown Source)
    at java.util.stream.ReferencePipeline.forEachWithCancel(Unknown Source)
    at java.util.stream.AbstractPipeline.copyIntoWithCancel(Unknown Source)
    at java.util.stream.AbstractPipeline.copyInto(Unknown Source)
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
    at java.util.stream.FindOps$FindOp.evaluateSequential(Unknown Source)
    at java.util.stream.AbstractPipeline.evaluate(Unknown Source)
    at java.util.stream.ReferencePipeline.findFirst(Unknown Source)
    at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:125)
    at org.openqa.selenium.remote.ProtocolHandshake.createSession(ProtocolHandshake.java:73)
    at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:136)
    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.startSession(RemoteWebDriver.java:212)
    at org.openqa.selenium.remote.RemoteWebDriver.<init>(RemoteWebDriver.java:130)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:125)
    at org.openqa.selenium.firefox.FirefoxDriver.<init>(FirefoxDriver.java:103)
    at basicweb.FirefoxDriverDemo.main(FirefoxDriverDemo.java:17)

Upvotes: 0

Views: 487

Answers (2)

shubham chawla
shubham chawla

Reputation: 98

Use firefox version 56 or 61 and gecko driver version 0.21. and add firefox options use profile.

FirefoxOptions fo = new FirefoxOptions();
fo.setBinary("C:\\Users\\ChawlaSh\\AppData\\Local\\Mozilla Firefox\\firefox.exe");
ProfilesIni profile = new ProfilesIni();
FirefoxProfile myprofile = profile.getProfile("default");
fo.setProfile(myprofile);
driver = new FirefoxDriver(fo);

I hope this will surely help.

Upvotes: 1

undetected Selenium
undetected Selenium

Reputation: 193058

This error message...

Exception in thread "main" org.openqa.selenium.SessionNotCreatedException: Unable to find a matching set of capabilities

...implies that your program wasn't able to create a new Firefox Browser session..

Analysis

There are a couple of issues as follows:

  • file.separator: Character that separates components of a file path. This is / on UNIX and \ on Windows. You need to escape them too.
  • Your JDK version is 1.8.0_151 which is pretty ancient.

Solution

  • Use file.separator as \ escaping with another \.
  • Upgrade JDK to recent levels JDK 8u191.
  • Ensure the GeckoDriver-Firefox Mapping

Geckodriver Releases

  • You effective code block will be:

    WebDriver driver;
System.setProperty("webdriver.gecko.driver", "D:\\Try out files\\geckodriver.exe");
driver = new FirefoxDriver();
String baseURL = "http://www.google.com";
driver.get(baseURL);

Upvotes: 0

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