title: Publish to TestFlight using Fastlane from VSTS
body: <p>I'm trying to use the App Store VSTS extension to deploy a build of an app to TestFlight but something is failing at the authentication stage.</p>
  
  <p>It seems to be related to the fact that iTunes is challenging for answers to the security questions for the account:</p>
  
  <p>I'm not sure how to resolve this:</p>
  
  <ul>
  <li>Is this an issue with the account I'm trying to use?</li>
  <li>Is this an issue with how I have the service endpoint configured?</li>
  </ul>
  
  <pre><code>fastlane pilot upload -u ******** -i FrameworkDemoApp.Touch.ipa -q 466996 -r **** -a *****
  --skip_submission true --skip_waiting_for_build_processing true
  
  Login to iTunes Connect (********)
  
  Service key is empty
  
  /Users/vsts/.gem-cache/gems/fastlane-2.93.1/spaceship/lib/spaceship/two_step_client.rb:45:
  in handle_two_step:` 
  [!] Invalid 2 step response {"securityQuestions"=&gt;{"questions"=&gt;[{"id"=&gt;134, "question"=&gt;
  "Where did you go the first time you flew on a plane?", "number"=&gt;1, "userDefined"=&gt;false},
  {"id"=&gt;136, "question"=&gt;"What is your dream job?", "number"=&gt;2, "userDefined"=&gt;false}]},
  "crResetEnabled"=&gt;false,
  "resetSecurityQuestionsSupportLink"=&gt;"http://support.apple.com/kb/HT6170"}
  </code></pre>