title: Archiving fails due to undefined Symbols for Google Analytics
body: <p>I have integrated GAI using the most recent cocoapods version.</p>
  
  <p>When I build in the Debug config everything runs just fine.
  However, as soon as I try to archive the Application the compiler fails with the following messages:</p>
  
  <pre><code>Undefined symbols for architecture armv7:
    "_OBJC_CLASS_$_GAIDictionaryBuilder", referenced from:
        objc-class-ref in libWLCore.a(WLTrackingHelper.o)
    "_OBJC_CLASS_$_GAI", referenced from:
        objc-class-ref in libWLCore.a(WLTrackingHelper.o)
    "_kGAIScreenName", referenced from:
        +[WLTrackingHelper trackView:] in libWLCore.a(WLTrackingHelper.o)
        +[WLTrackingHelper resetView] in libWLCore.a(WLTrackingHelper.o)
    "_kGAIAnonymizeIp", referenced from:
        +[WLTrackingHelper prepareDefaultTracker:withAnonymization:withUnCaughtExceptions:withDebug:] in libWLCore.a(WLTrackingHelper.o)
  ld: symbol(s) not found for architecture armv7
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  </code></pre>
  
  <p>Since it works in Debug I tried to figure out where the difference in the configuration between Debug and Release lies.
  I found out that the Other linker flags in Release are empty whereas in Debug contains the flag for GoogleAnalytics and other frameworks and libraries.</p>
  
  <p>After adding the flags to the Release Configuration of Other linker flags I got     </p>
  
  <pre><code>library not found for -lGoogleAnalyticsServices
  </code></pre>
  
  <p>After that, I added libPods and after that libPods-GoogleAnalytics to the Link Binary With Libraries section but the errors remained the same.</p>
  
  <p>I invested almost 2 days into that problem, but I could not find any solution.</p>