API Google出错

Question

I have this error

Fatal error: Cannot call constructor in C:\wamp\www\google-login-api\src\Google\Service\Analytics.php on line 84

In this line

 $analytics = new Google_Service_Analytics($gClient); echo
 $analytics->data_ga->get(
       'ga:111111',
       '7daysAgo',
       'today',
       'ga:sessions');

Can you tell me what I'm doing wrong?