title: Unable to access Swift 4 class from Objective-C: "Property not found on object of type"
body: <p>Using the latest Xcode 9 beta, I'm seemingly completely unable to access properties on Swift classes. Even odder, I can access the class itself to instantiate it or whatever, but completely unable to access properties on it.</p>
  
  <p>So if I have this Swift class:</p>
  
  <pre><code>import UIKit
  
  class TestViewController: UIViewController {
      var foobar = true
  }
  </code></pre>
  
  <p>And I try to do this:</p>
  
  <pre><code>TestViewController *testViewController = [[TestViewController alloc] init]; // success
  testViewController.foobar; // error
  </code></pre>
  
  <p>What exactly am I doing wrong? New project with Xcode 9.</p>