title: How to link with framework without arm64 support in Xcode 5.1?
body: <p>After upgraded a project on Xcode 5.1, Product > Build gives the following warning and error:</p>
  
  <blockquote>
    <p>ld: warning: ignoring file Dropbox/Dropbox.framework/Dropbox, missing
    required architecture arm64 in file Dropbox.framework/Dropbox (3
    slices)</p>
    
    <p>Undefined symbols for architecture arm64:   "_OBJC_CLASS_$_DBPath",
    referenced from:
          objc-class-ref in DropboxViewController.o</p>
  </blockquote>
  
  <p>It seems like the Dropbox.framework does not support arm64 yet. </p>
  
  <p>What are the Xcode settings to remove arm64 support from the project to have a clean build?</p>