I am getting Following messages on Xcode Console View
libMobileGestalt MobileGestaltSupport.m:153: pid 231 (myproject) does not have sandbox access for frZQ
I am getting the same issue when trying to display the GoogleMap using GMSMapView. but it is just a warning (I still don't know how to get rid of it). What i wanted to say is the Google Map view display and functionality works fine with this warning too. (I checked in IOS 10.3)
check if you are trying to display the map in a subview there is a separate way to display (This is an easy guide i found - http://www.ryanwright.me/cookbook/ios/obj-c/maps/gmap/subview)
otherwise try
self.view = gmsMapView;