Cannot find protocol declaration for "MFMailComposeViewControllerDelegate"; Did you mean "UIPageViewControllerDelegate"?

Question

This code:

#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#import <MessageUI/MessageUI.h>
#import "MessageComposerViewController.h"
#import <MessageUI/MFMailComposeViewController.h>

@interface MapViewController : UIViewController <MFMailComposeViewControllerDelegate> // Add the delegate

- (IBAction)showEmail:(id)sender;

{
    IBOutlet MKMapView *mapView;
}

@property (nonatomic, retain) MKMapView *mapView;

@end

This problem or error:

• Cannot find protocol declaration for 'MFMailComposeViewControllerDelegate'; Did you mean "UIPageViewControllerDelegate"? for this character: #import "MessageComposerViewController.h"

• The expected identifier or '(' for this character: @interface MapViewController: UIViewController // Add a delegate and this character: {

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Answer 1

Try it,

    #import <UIKit/UIKit.h>
    #import <MapKit/MapKit.h>
    #import <MessageUI/MessageUI.h>
    #import "MessageComposerViewController.h"
    #import <MessageUI/MFMailComposeViewController.h>

    @interface MapViewController : UIViewController <MFMailComposeViewControllerDelegate,UINavigationControllerDelegate> {
      IBOutlet MKMapView *mapView;
   }
    - (IBAction)showEmail:(id)sender;
    @property (nonatomic, retain) MKMapView *mapView; 
    @end

Answer 2

Xcode, . , .

Answer 3

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