title: copypng failed with exit code 1
body: <p>I am getting the following error when building my iPhone application. The reddarkedge.png is right there in the supporting files folder. </p>
  
  <pre><code>/Users/azamsharp/Desktop/UltraCam/UltraCam/TCam/reddarkedge.pngCommand /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/Xcode/PrivatePlugIns/iPhoneOS Build System Support.xcplugin/Contents/Resources/copypng failed with exit code 1
  </code></pre>
  
  <p>Even if I remove the reddarkedge.png from the project it still gives me the same error. </p>
  
  <p><img src="https://i.stack.imgur.com/CPa62.png" alt="enter image description here"></p>
  
  <p>UPDATE SOLUTION: </p>
  
  <p>Turns out I had to hard delete them. </p>