title: Can't open Xcode project in Xcode 4.5 after opening it in Xcode 5
body: <p>I'm working with another iOS programmer together on a project. Other programmer installed Xcode 5 on his computer and opened the project. After he sent me the project, I can't open it in my older Xcode 4.5. First I got the following error: 
  <strong>The document "MainStoryboard.storyboard" could not be opened. Could not read archive.
  Please use a newer version of Xcode. Consider changing the document's Development Target to preserve compatibility.</strong></p>
  
  <p>Then I opened the storyboard in source code and changed the version from 3.0 to 2.0 (and later to 1.0).
  After that, I tried to open the storyboard in Interface Builder and got the following error:</p>
  
  <p><strong>The document "MainStoryboard.storyboard" could not be opened. Failed to unarchive element named "tableViewCellContentView".
  Edit this document with a newer version of Xcode.</strong></p>
  
  <p>Do you have any idea or suggestion? </p>
  
  <p><img src="https://i.stack.imgur.com/iyjgl.png" alt="enter image description here"></p>