title: missing required architecture x86_64
body: <p>I have an old project, that I recompiled for an uodate, and it is now showing this error message:</p>
  
  <pre><code> …. missing required architecture x86_64 in file myLibrary.a ….
  </code></pre>
  
  <p>I have tried various tricks that I could find on the net after searching on <code>missing required architecture x86_64 in file</code>, but with no success. Anyone knows how to properly handle the issue?</p>
  
  <p>I am using Xcode Version 7.0.1.</p>
  
  <p>Running:</p>
  
  <pre><code>lipo -info myLibrary.a
  </code></pre>
  
  <p>shows: </p>
  
  <pre><code>Architectures in the fat file: myLibrary.a are: armv7 arm64 
  </code></pre>
  
  <p>I have been able to add armv7s but not x86_64.</p>