I have sucessfully run locator commands in Firefox, Chrome and IE but I have an issue with Opera 12.02.
This code is the source of the issue:

driver.findElement(By.id("MainContent_txtUserLog")).sendKeys("[email protected]");
//entering values to a username field

I got the following error in console:

com.opera.core.systems.scope.exceptions.CommunicationException: Error on command:
service: "ecmascript" commandID: 2 format: 0status:tag: 32 payload: "\n%Unknown error while executing command"

I am newbie to Selenium Webdriver.

  • 3
    You have also posted the same questions here: stackoverflow.com/questions/12489609/…. Not sure posting in multiple forums will help more. A few people answering here and a few there will segment the information for anyone looking for this. Sep 20, 2012 at 16:58

1 Answer 1


Looks like the last section on this page addresses a similar(?) problem as a known issue: http://code.google.com/p/selenium/wiki/OperaDriver

Also, it says the Opera 12.00+ is not yet officially supported by selenium OperaDriver

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