iOS Facebook sdk 4.0 share an image

I'm trying to share an image using the new facebook sdk 4.0. I'm using the same code in the facebook example but I'm getting this exception when I try to present the FBSDKShareDialog.

* Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Unable to parse the format string "SELF NOT NULL"' * First throw call stack: ( 0 CoreFoundation 0x000000010b782a75 __exceptionPreprocess + 165 1 libobjc.A.dylib

0x000000010b35abb7 objc_exception_throw + 45 2 Foundation

0x000000010aca097d _qfqp2_performParsing + 8495 3 Foundation

0x000000010ac9e7e6 +[NSPredicate predicateWithFormat:arguments:] + 46 4 Foundation 0x000000010ac9e7a0 +[NSPredicate predicateWithFormat:] + 142 5 PhotoGunShot 0x0000000107f1a4fc -[FBSDKShareDialog _showShareSheetWithCanShowError:validationError:] + 653 6 PhotoGunShot 0x0000000107f18f7b -[FBSDKShareDialog show] + 147

Here is the code

- (UIAlertAction*) createActionForFacebookWithMediaPath:(NSString*) path andMediaType:(MediaType) mediaType {
    NSString * mediaName = mediaType == kMediaTypeImage ? NSLocalizedString(@"KEY_IMAGE", nil) : NSLocalizedString(@"KEY_VIDEO", nil);
    UIAlertAction* facebookAction = [UIAlertAction actionWithTitle:[NSString stringWithFormat:@"%@ %@",NSLocalizedString(@"KEY_SHARE_YOUR", nil),mediaName] style:UIAlertActionStyleDefault
                                                          handler:^(UIAlertAction * action) {
                                                              NSObject<FBSDKSharingContent> * content = nil;
                                                              if (mediaType == kMediaTypeImage) {
                                                                  NSURL * fileURL = [NSURL URLWithString:path];
                                                                  FBSDKSharePhoto *photo = [[FBSDKSharePhoto alloc] init];
                                                                  photo.imageURL = fileURL;
//                                                                  photo.userGenerated = YES;
                                                                  FBSDKSharePhotoContent * photoContent = [[FBSDKSharePhotoContent alloc] init];
                                                                  photoContent.photos = @[photo];
                                                                  content = photoContent;
                                                              }
                                                              else if (mediaType == kMediaTypeVideo) {
                                                                  NSURL *videoURL = [NSURL fileURLWithPath:path];

                                                                  FBSDKShareVideo *video = [[FBSDKShareVideo alloc] init];
                                                                  video.videoURL = videoURL;
                                                                  FBSDKShareVideoContent * videoContent = [[FBSDKShareVideoContent alloc] init];
                                                                  videoContent.video = video;
                                                                  content = videoContent;
                                                              }
                                                                  [FBSDKShareDialog showFromViewController:self
                                                                                               withContent:content
                                                                                                  delegate:nil];

                                                          }];
    return facebookAction;

}
- (UIAlertAction*) createActionForCameraRollWithMediaPath:(NSString*) path andMediaType:(MediaType) mediaType {
    return nil;

}
- (void) showShareOptionsForMediaPath:(NSString*)path {
    UIAlertController * alertControl =[UIAlertController alertControllerWithTitle:NSLocalizedString(@"KEY_SHARE_TITLE", nil) message:nil preferredStyle:UIAlertControllerStyleActionSheet];
    UIAlertAction * cancelAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"KEY_CANCEL", nil) style:UIAlertActionStyleCancel handler:NULL];
    [alertControl addAction:cancelAction];
    MediaType mediaType = [self checkMediaTypeAtPath:path];
    switch (mediaType) {
        case kMediaTypeImage:
        {
            UIAlertAction * fbAction =[self createActionForFacebookWithMediaPath:path andMediaType:kMediaTypeImage];
            [alertControl addAction:fbAction];
        }
            break;
        case kMediaTypeVideo:
        {
            UIAlertAction * fbAction =[self createActionForFacebookWithMediaPath:path andMediaType:kMediaTypeVideo];
            [alertControl addAction:fbAction];

        }
            break;
        case kMediaTypeUnknown:
        {
            //EXCEPTION
        }
            break;
        default:
            break;
    }

    [self presentViewController:alertControl animated:YES completion:nil];
}

First I create an UIAlertController that shows the share options, and add the relative UIAlertAction, the exception is generated when I call the share dialog.

Any suggestion?