title: Xcode 5.1 - No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64, VALID_ARCHS=i386)
body: <p>After updating to Xcode 5.1, I can no longer build my project for the 64-bit simulator, receiving this error:</p>
  
  <pre><code> No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64, VALID_ARCHS=i386).
  </code></pre>
  
  <p>These are my target build settings:</p>
  
  <p><img src="https://i.stack.imgur.com/NFX1J.png" alt="Xcode target build settings"></p>
  
  <p>I tried changing "Build Active Architecture" to No, as well as adding "i386" to the "Valid Architectures", unfortunately neither worked.
  Thanks for any suggestions!</p>