Xcode stuck on Generating Previews when Migrating to Swift 3
<p>Xcode is stuck Generating Previews after trying to migrate my project from <code>Swift 2.3</code> to <code>Swift 3</code>.</p>

<p>Is there anyway to check the status of this process without cancelling?</p>

<p>I'm using Cocoapods and I've already changed all of the Swift pods to <code>Swift 3</code> versions.</p>

<p><a href="https://i.stack.imgur.com/AZ9A1.png"><img src="https://i.stack.imgur.com/AZ9A1.png" alt="Generating preview"></a></p>