title: GANTracker for iPhone SDK custom variables gives error 195946409
body: <p>I would like to use google analytics to track pageviews and sessions by certain users.
  To do this I (would like to) use a custom variables which are supported by the newest (v1.1) GANTracker version.</p>
  
  <p>in my appHeader I have this code:</p>
  
  <pre><code>[[GANTracker sharedTracker] startTrackerWithAccountID:@"UA-xxxxxxxx-x"
                                         dispatchPeriod:10
                                               delegate:nil];
  
  NSError *error1;
  if(![[GANTracker sharedTracker] setCustomVariableAtIndex:0
                                                      name:@"userSession"
                                                     value:@"username"
                                                     scope:kGANSessionScope
                                                 withError:&amp;error1]){
      NSLog(@"error1 %@", error1);
  }
  
  NSError *error2;
  if(![[GANTracker sharedTracker] setCustomVariableAtIndex:1
                                                      name:@"userSession"
                                                     value:@"username"
                                                     scope:kGANPageScope
                                                 withError:&amp;error2]){
      NSLog(@"error2 %@", error2);
  }
  </code></pre>
  
  <p>when I start my app I get these errors: </p>
  
  <pre><code>error1: Error Domain=com.google.googleanalytics.GANTrackerError Code=195946409 "The operation couldn’t be completed. (com.google.googleanalytics.GANTrackerError error 195946409.)"
  error2: Error Domain=com.google.googleanalytics.GANTrackerError Code=195946409 "The operation couldn’t be completed. (com.google.googleanalytics.GANTrackerError error 195946409.)"
  </code></pre>
  
  <p>in the function that opens a page I want to track I put this:</p>
  
  <pre><code>NSError * error;
  if(![[GANTracker sharedTracker] trackPageview:@"/pagename"]
                                      withError:&amp;error]){
          NSLog(@"%@", error);
  }
  </code></pre>
  
  <p>this returns no errors</p>
  
  <p>if I leave out the setCustomVariableAtIndex function the pageview is logged in analytics but with the custom vars I get nothing.</p>
  
  <p>Does anyone have an idea on how I can solve this problem?</p>