title: Symbol not found: _CFXMLNodeGetInfoPtr when start Instruments
body: <p>I am developing a iPhone app and everything works fine so far. I can build and start the app in the simulator. But when I now start the app with Instruments I got the error:</p>
  
  <pre><code>Dyld Error Message:
  Symbol not found: _CFXMLNodeGetInfoPtr
  Referenced from: /System/Library/Frameworks/Security.framework/Versions/A/Security
  Expected in: /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.0.sdk/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
  </code></pre>
  
  <p>I've googled but did not find a solution.</p>
  
  <p>Hope somebody can help me out. Thx</p>