title: "Use of undeclared identifier 'AppDelegate'
body: <p>I'm not sure why I'm getting this error, I have imported AppDelegate.h in the file.. Here's the code in the file. This is in main.m.</p>
  
  <pre><code>#import &lt;UIKit/UIKit.h&gt;
  
  #import "AppDelegate.h"
  
  int main(int argc, char * argv[])
  {
      @autoreleasepool {
          return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
      }
  }
  </code></pre>
  
  <p>Here is my AppDelegate.h</p>
  
  <pre><code>#import &lt;UIKit/UIKit.h&gt;
  
  @interface AppDelegate : UIResponder  &lt;NSURLSessionDelegate, NSURLSessionDownloadDelegate&gt;
  @property (strong, nonatomic) UIWindow *window;
  
  @end
  </code></pre>