Problem with Google Analytics module: "undefined index"
This is a support request on Drupal.org for this here.

Since it is not really a bug or feature request though it is technically on topic here so the summary of that issue is:


Make sure that you have run update.php.
If that didn't fix the problem then try re-saving your google analytics settings (it would be a good idea to confirm that they are what they should be before saving).


Also I would recommend that if you get error messages like that to search google and the drupal.org issue queue for the module(s) in question.