Error: Data structure returned is not convertible in the requested format. Try to call this method with the parameters '&format=original&serialize=1'; you will get the original php data structure serialized. The data structure looks like this: $data = array ( 0 => array ( 'category' => 'Visitors', 'name' => 'Country', 'module' => 'UserCountry', 'action' => 'getCountry', 'dimension' => 'Country', 'metrics' => array ( 'nb_visits' => 'Visits', 'nb_uniq_visitors' => 'Unique visitors', 'nb_actions' => 'Actions', ), 'processedMetrics' => array ( 'nb_actions_per_visit' => 'Actions per Visit', 'avg_time_on_site' => 'Avg. Time on Website', 'bounce_rate' => 'Bounce Rate', 'conversion_rate' => 'Conversion Rate', ), 'uniqueId' => 'UserCountry_getCountry', ), );