title: clang: error: cannot specify both '-fobjc-arc' and '-fobjc-gc' in Xcode 4.6.3
body: <p>I can't figure out why I can't get this project to archive. It gives me the error:     </p>
  
  <pre><code>clang: error: cannot specify both '-fobjc-arc' and '-fobjc-gc'
  </code></pre>
  
  <p>I have already looked here <a href="https://stackoverflow.com/questions/10239116/clang-error-cannot-specify-both-fobjc-arc-and-fobjc-gc">clang: error: cannot specify both &#39;-fobjc-arc&#39; and &#39;-fobjc-gc&#39;</a> and that didn't help me, so how can I figure this? I need to use <code>_bridge</code> otherwise it will give my a memory leak. I want to run this on <code>10.8 Mac OSX</code>. Thank you.</p>