Difficulties with Yandex SpeechKit voice activation?

Question

iOS

Good afternoon.
As a hobby, I am developing a robot controlled via WiFi with an iOS application (iPad iOS 8.1).
Having learned that Yandex has developed speech technologies and offers libraries for iOS (SpeechKit), I decided to attach control of fixed voice commands (voice activation). I received an API key, a model of several voice commands, and advice from Yandex SpeechKit API support specialists on how to solve my simple task. I must say right away that I am by no means an expert in programming in XCode (ver. 6.2) for iOS.
Wrote, took into account all the advice (including those that are not in the documentation: setting the -ObjC flag in Project->Build Settings-> Linking->Other Linker Flags). Doesn't recognize! Does not recognize neither in iOSimulator'e, nor on iPad'e (control is not transferred to phraseSpotterDidSpotPhrase). I sent my entire XCod project to the Yandex SpeechKit API support service - it recognizes them!
Here is my code (errorView, ypsStatus, resultView are UI TextFields; the voice model files are in the activation folder; the microphone works on a Mac, the microphone on an iPad works and is available to the application; the project file structure is attached). We exchanged a bunch of letters with the Yandex SpeechKit API support service - no result. They kind of backed off.

//  ViewController.m
#import "ViewController.h"
#import <YandexSpeechKit/SpeechKit.h>
#import <YandexSpeechKit/YSKPhraseSpotter.h>
#import <YandexSpeechKit/YSKPhraseSpotterDelegate.h>

@interface ViewController () <YSKPhraseSpotterDelegate>
@end

@implementation ViewController

- (void)viewDidLoad
{   [super viewDidLoad];
    // привязка к API-ключу
    [[YSKSpeechKit sharedInstance] configureWithAPIKey:@"8d67e88f-……4ca78beb7b30"];
        
    // инициализация YSKPhraseSpotter
    NSString *resourcePath = [[NSBundle mainBundle] resourcePath];
    NSString *modelPath = [resourcePath stringByAppendingPathComponent:@"activation"];
    
    NSError *error1 = [YSKPhraseSpotter initializeWithConfigDirectory:modelPath andDelegate:self];
    if ([error1 code]) [self.errorView setText:@"error1"];
    
    // запуск YSKPhraseSpotter
    NSError *error2 = [YSKPhraseSpotter start];
    if ([error2 code]) [self.errorView setText:@"error2"];
    // проверка активности     YSKPhraseSpotter
    if ([YSKPhraseSpotter isRunning] ) {[self.ypsStatus setText:@" активирован"];}
    else {[self.ypsStatus setText:@"неактивирован!!!"];}
}

- (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning];}

- (void)phraseSpotterDidSpotPhrase:(NSString *)phrase withIndex:(int)phraseIndex
{    // если хоть что-то узнал
    [self.resultView setText:@"YPS uznal"]; }

@end

It seems to me that the gag is in some subtle settings of XCod'a.
Good people, do you have any thoughts on this? It's a pity to quit, I feel that the decision is in some nonsense.
Thank you.