title: Carthage errors "No tagged versions found for github"
body: <p>I want to use Carthage in my projects, so I installed Carthage. I prepared a Cartfile in the project's root folder. When I typed the <code>carthage update</code> command in the terminal, I got this error:</p>
  
  <blockquote>
    <p>*** Cloning HanekeSwift<br>
    No tagged versions found for github "Haneke/HanekeSwift"</p>
  </blockquote>
  
  <p>The Cartfile file contains these lines:</p>
  
  <pre><code>github "Alamofire/Alamofire" &gt;= 1.2
  github "Haneke/HanekeSwift"
  </code></pre>
  
  <p>Why am I getting this error?</p>