title: Apple Mach-O Linker Error ZBarSDK error when building for distribution
body: <p>I  just got this same error when using ZBarSDK, a bar scanning library for iOS. It runs fine when I upload it to my development device or test it on the iOS6 simulator. But when I try to run it for Distribution it fails with:</p>
  
  <p>(null): File is universal (3 slices) but does not contain a(n) armv7s slice: /Users/quique123/Documents/iphone apps/ScanThis/ZBarSDK/libzbar.a for architecture armv7s</p>
  
  <p>where libzbar.a is the library from the sdk.</p>
  
  <p>Any ideas?</p>