title: How to set CURRENT_PROJECT_VERSION in Xcode 8
body: <p>Since upgrading to Xcode 8, when I do a build with fastlane, I get the following error message:</p>
  
  <blockquote>
    <p>There does not seem to be a CURRENT_PROJECT_VERSION key set for this project</p>
  </blockquote>
  
  <p>If I go to <code>Xcode &gt; Build Settings</code> and go down to Versioning, there is a Current Project Version key, as shown below:</p>
  
  <p><a href="https://i.stack.imgur.com/RjkKa.png" rel="noreferrer"><img src="https://i.stack.imgur.com/RjkKa.png" alt="screen shot of versioning"></a></p>
  
  <p>The help text says to enter an integer or floating point number, but when I click on the field, there is no opportunity to enter a number in either the Debug or Release field.  This is different from the screen shot shown <a href="https://developer.apple.com/library/content/qa/qa1827/_index.html" rel="noreferrer">in this apple tech Q&amp;A</a> so there appears to have been a change in Xcode since the Q&amp;A was released.</p>