title: Icon.png file error in universal app
body: <p>I am getting this warning while building for Release - </p>
  
  <p>iPhone/iPod Touch: icon.png: icon dimensions (72 x 72) don't meet the size requirements.  The icon file must be 57x57 pixels, in .png format (-19014)</p>
  
  <p>This is a universal app and I have two icon.png files in my project  one in iPhone -> images and other in iPad -> images.</p>
  
  <p>Also in info.plist file I set Icon file to "icon" (without any extension) I am assuming that it will find the correct file for iPhone 3 , iPhone 4 and iPad accordingly. </p>
  
  <p>How can I resolve this warning? </p>