title: issue when renaming AppDelegate - build is ok but getting issue looking for AppDelegate.m
body: <p>I created a new project and wanted to rename to the app delegate from AppDelegate to FlickrAppDelegate. I think I renamed in proper places and am able to build but I get the following error:</p>
  
  <p><img src="https://i.stack.imgur.com/MHmxA.png" alt="enter image description here"></p>
  
  <p>It builds ok but obviously don't want this error. If I look in the Build Log, there are no errors. </p>
  
  <p>How do I remove this issue?</p>
  
  <p>thx </p>
  
  <p><strong>edit #1</strong>
  build phases screenshot:
  <img src="https://i.stack.imgur.com/2hB8v.png" alt="enter image description here"></p>
  
  <p><strong>edit #2</strong>
  added files screenshot
  <img src="https://i.stack.imgur.com/OvBqL.png" alt="enter image description here"></p>