title: Mach O Link Error- linker command failed with exit code 1 (use -v to see invocation)
body: <p>When I try building for archiving for my app in Xcode (version 4.5) I get an error that says:</p>
  
  <pre><code>ld: file is universal (3 slices) but does not contain a(n) armv7s slice: /Users/[myrealname]/Downloads/[myappname]/BT_Objects/TwitterOAuth/SAOAuthTwitterEngine/libOAuth.a for architecture armv7s
  </code></pre>
  
  <p>clang: error: linker command failed with exit code 1 (use -v to see invocation)
  It then says under it:</p>
  
  <pre><code>(null): File is universal (3 slices) but does not contain a(n) armv7s slice: /Users/shakerite/Downloads/shakeritetestnotrealone_v15_iOS/BT_Objects/TwitterOAuth/SAOAuthTwitterEngine/libOAuth.a for architecture armv7s
  </code></pre>
  
  <p>Does anyone know how to solve this?</p>