Works fine in release mode but not in debug. Settings seem to be identical, but if they are not I cannot see what is different. Apparently GTL_BUILT_AS_FRAMEWORK is not defined in debug mode. Everything is included by reference into project.
in GTLCalendarEventAttendee.h
#if GTL_BUILT_AS_FRAMEWORK
#import "GTL/GTLObject.h"
#else
#import "GTLObject.h"
#endif
