title: Groovy code: which library to import
body: <pre><code>import geb.Browser
  import org.openqa.selenium.firefox.FirefoxDriver
  
  Browser.drive {
      go "google.com"
  }
  </code></pre>
  
  <p>I run the script above and get the following error:<code>java.lang.NoClassDefFoundError: org/openqa/selenium/TakesScreenshot</code></p>