title: Error: Symbol not found: ___CFObjCIsCollectable
body: <p>today I was working in xcode when this error showed up on start up of the app, whats wrong with my app? </p>
  
  <blockquote>
    <p>2012-07-29 19:29:58.682 Champagne Pop[10601:1b03] Error loading
    /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn:
    dlopen(/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn,
    262): Symbol not found: __<em>CFObjCIsCollectable   Referenced from:
    /System/Library/Frameworks/Security.framework/Versions/A/Security<br>
    Expected in:
    /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
    in /System/Library/Frameworks/Security.framework/Versions/A/Security
    2012-07-29 19:29:58.690 Champagne Pop[10601:1b03] Error loading
    /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn:
    dlopen(/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn,
    262): Symbol not found: _</em>_CFObjCIsCollectable   Referenced from:
    /System/Library/Frameworks/Security.framework/Versions/A/Security<br>
    Expected in:
    /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
    in /System/Library/Frameworks/Security.framework/Versions/A/Security
    2012-07-29 19:29:58.703 Champagne Pop[10601:1b03] Error loading
    /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn:
    dlopen(/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn,
    262): Symbol not found: __<em>CFObjCIsCollectable   Referenced from:
    /System/Library/Frameworks/Security.framework/Versions/A/Security<br>
    Expected in:
    /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
    in /System/Library/Frameworks/Security.framework/Versions/A/Security
    2012-07-29 19:29:58.710 Champagne Pop[10601:1b03] Error loading
    /System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn:
    dlopen(/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn,
    262): Symbol not found: _</em>_CFObjCIsCollectable   Referenced from:
    /System/Library/Frameworks/Security.framework/Versions/A/Security<br>
    Expected in:
    /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation
    in /System/Library/Frameworks/Security.framework/Versions/A/Security</p>
  </blockquote>