Apple Mach-O Linker error when using Google Maps SDK for IOS

I am trying to use the Google Maps SDK in my application. So far, I have linked all the structures. I'm sure I've added the appropriate flags -ObjC

as instructed. However, when I copied and pasted my code into my class ViewController.m

, I get the following errors:

Undefined symbols for the i386 architecture:
"_OBJC_CLASS _ $ _ GMSCameraPosition" referenced by: objc-class-ref in FoothillTourViewController.o "_OBJC_CLASS _ $ _ GMSMapView" referenced: objc-class-ref in FoillTourView _OBJCoth_CLASS _ $ _ GMSMarker "referenced: objc-class-ref in FoothillTourViewController.o" _OBJC_CLASS _ $ _ GMSServices "referenced: objc-class-ref in FoothillTourAppDelegate.o ld: Symbol not found for i386 clang architecture: error: linker command failed with exit code 1 (use -v to invoke the call)

"FoothillTourViewController"

is the name of my class ViewController

. Here is the code for my View Controller class. The code is taken directly from the instructions.

#import "FoothillTourViewController.h"
#import <GoogleMaps/GoogleMaps.h>

@implementation FoothillTourViewController {
    GMSMapView *mapView_;
}

// You don't need to modify the default initWithNibName:bundle: method.

  - (void)loadView {
  //Create a GMSCameraPosition that tells the map to display the
  // coordinate -33.86,151.20 at zoom level 6.
  GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:-33.86
                                                        longitude:151.20
                                                             zoom:6];
 mapView_ = [GMSMapView mapWithFrame:CGRectZero camera:camera];
 mapView_.myLocationEnabled = YES;
 self.view = mapView_;

  // Creates a marker in the center of the map.
  GMSMarker *marker = [[GMSMarker alloc] init];
  marker.position = CLLocationCoordinate2DMake(-33.86, 151.20);
  marker.title = @"Sydney";
  marker.snippet = @"Australia";
  marker.map = mapView_;
  }

      

        
        
        
      

    

Any help would be greatly appreciated as I spend hours trying to figure out what is going on. I guess this is a silly mistake, but I can't seem to superimpose on it. Thank!