title: App don't see files
body: <p>This all started when I changed my_sound.mp3 to another sound with the same name in 'Supporting Files' folder, but after compiling app was still playing the old one. After that I've done a lot of manipulations.</p>
  
  <p>What I've tried: </p>
  
  <ul>
  <li><p>Delete app from iPhone and from Simulator</p></li>
  <li><p>Delete all from Library/Developer/Xcode/DerivedData</p></li>
  <li><p>Product > Clean in Xcode</p></li>
  </ul>
  
  <p>Now my app don't see my_sound.mp3 at all...</p>
  
  <p>How I check:</p>
  
  <pre><code>NSString* path = [[NSBundle mainBundle] pathForResource:@"my_sound" ofType:@"mp3"];
  if (![[NSFileManager defaultManager] fileExistsAtPath:path]) { 
      NSLog(@"No file");
  }
  </code></pre>
  
  <p>Files created long time ago in 'Supporting Files' are available.</p>