title: Can't run UITest on iphone 4s simulator with xcode 9
body: <p>Project can build properly on iphone 4s simulator but trying to run UITest on it gives me the error :</p>
  
  <blockquote>
    <p>The bundle “MyappUITests” couldn’t be loaded because it doesn’t contain a version for the current architecture. Try installing a universal version of the bundle.</p>
  </blockquote>
  
  <p>Can't seem to figure out the root cause for this, tests are running properly on every other simulator.</p>
  
  <p>Any thoughts?</p>