title: Error on Running Selenium Webdriver in Jenkins
body: <p>I am getting bellow error. I am running ant task on jenkins for running testcases..  </p>
  
  <pre><code>[testng] org.openqa.selenium.firefox.NotConnectedException: Unable to connect to host    127.0.0.1 on port 7055 after 45000 ms. Firefox console output:
  [testng] Error: no display specified
  [testng] Error: no display specified
  </code></pre>
  
  <p>Please provide me the solution for this problem.</p>
  
  <p>Thank you.</p>