title: JSONHTTPClient.m - "use of undeclared identifier UIApplication" build error (line 387)
body: <p>I just added <a href="https://github.com/icanzilb/JSONModel" rel="nofollow">JSONModel</a> to my projected, according to instructions:</p>
  
  <ol>
  <li>Download the JSONModel repository as a zip file or clone it</li>
  <li>Copy the JSONModel sub-folder into your Xcode project</li>
  <li>Link your app to SystemConfiguration.framework</li>
  </ol>
  
  <p>tried to build, and... build error! </p>
  
  <p><strong><em>"use of undeclared identifier UIApplication" build error (line 387)</em></strong></p>
  
  <p>How to solve it?</p>