title: podspec specification does not validate
body: <p>I'm trying to create a cocoa pod following <a href="http://www.raywenderlich.com/99386/create-cocoapod-swift" rel="noreferrer">this tutorial</a>. I'm stuck at the moment where I'm doing the following command:</p>
  
  <blockquote>
    <p>pod repo push RWPodSpecs RWPickFlavor.podspec</p>
  </blockquote>
  
  <p>the problem is that I've got the following error:</p>
  
  <pre><code>Validating spec
  [!] The `RWPickFlavor.podspec` specification does not validate.
  </code></pre>
  
  <p>And not further error description unfortunately. What I tried was reinstalling cocoapods and installing cocoapods keys, but it didn't help. I'm still getting the same error. Any ideas, guys? </p>