title: dyld: Symbol not found: _NSURLAuthenticationMethodClientCertificate when trying to run iOS app
body: <p>My app is crashing with the message:</p>
  
  <blockquote>
    <p>dyld: Symbol not found: _NSURLAuthenticationMethodClientCertificate<br>
    Referenced from:
    /var/mobile/Applications/C7B596AD-FB09-4685-BDFC-7E955A5DD185/IRON
    TRAINERS.app/IRON TRAINERS   Expected in:
    /System/Library/Frameworks/CFNetwork.framework/CFNetwork  in
    /var/mobile/Applications/C7B596AD-FB09-4685-BDFC-7E955A5DD185/IRON
    TRAINERS.app/IRON TRAINERS (lldb)</p>
  </blockquote>
  
  <p>when I try to build and Run. When I remove the CFNetwork from my project, it works, I don't know why.</p>
  
  <p>I just installed Xcode6Beta and opened my project. It was working fine on Xcode5.1.</p>
  
  <p>UPDATE:</p>
  
  <p>It works fine on iOS simulator with Xcode 6, the problem is on my device running iOS 7.1.1.</p>
  
  <p>UPDATE 2:</p>
  
  <p>The selected answer below worked for me, although I already had foundation framework explicit added to my project, I had to remove it and add it again. Problem solved, at least, for now. :)</p>