Why selenium can't call Chrome or Firefox

Now the open source tools we use are generally selenium, and of course the benefit is that you can invoke different browsers. Contains the Ie\google\firefox and so on, but the call will appear when its browser cannot be called. The reason is simple, selenium and its browser version does not match. In general, selenium calls are caused by each driver version that is lower than the browser version.

Specific situation:

C:/ruby200/lib/ruby/gems/2.0.0/gems/selenium-webdriver-2.43.0/lib/selenium/webdr

Iver/remote/response.rb:52:in ' ASSERT_OK ': unknown error:unable to discover Ope

n Pages (selenium::webdriver::error::unknownerror)

The change is: I called Chromedriver to call the Chrome browser, but always prompted me to this error.

Another error in Chrome browser prompted: "–ignore-certificate-errors", of course, this problem can also be resolved by the Chrome browser: Right-click Browser-"Shortcut open mode-" target: "C:\Program files\ Google\chrome\application\chrome.exe "–ignore-certificate-errors-" Click the Apply button, so you can solve the problem of the change.

Then the selenium can not call the Chrome browser, just download the latest version of Chromedriver, and then put it in the folder.

In another case, the browser version is too low, you just need to upgrade the browser.

Selenium Updated Website: http://docs.seleniumhq.org/download/

Why selenium can't call Chrome or Firefox