title: Prefix.pch ReactiveCocoa/RACEXTScope.h file not found error
body: <p>As mentioned in the title, I have 
  <code>ReactiveCocoa/RACEXTScope.h</code> file not found error in <code>Prefix.pch</code> file.</p>
  
  <p>The following is Pod file</p>
  
  <pre><code>platform :ios, "7.1"
  
  pod 'Parse-iOS-SDK', '~&gt; 1.2'
  pod 'ReactiveCocoa', '~&gt; 2.3'
  pod 'ReactiveViewModel', '~&gt; 0.2'
  pod 'Parse-RACExtensions', '~&gt; 0.0'
  pod 'CKCalendar', '~&gt; 1.0'
  pod 'SDWebImage', '~&gt; 3.6'
  </code></pre>
  
  <p>As you can see from images, the file exists.
  But there is not interface declaration in the file.
  Does that matter?</p>
  
  <p>I'm using Xcode 6.0.1</p>
  
  <p>Can anyone give me a suggestion?</p>
  
  <p><img src="https://i.stack.imgur.com/3FKw2.png" alt="Error message">
  <img src="https://i.stack.imgur.com/qnXZs.png" alt="RACEXTScope.h file"></p>