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error while adding SDK iOS

I created a game application in Xcode. Then i added this code to viewWillAppear:

[self.wikitudeSDK start:nil completion:^(BOOL isRunning, NSError * __nonnull error) {

        if ( !isRunning ) {

            NSLog(@"Wikitude SDK is not running. Reason: %@", [error localizedDescription]);




            NSURL *clientTrackerURL = [[NSBundle mainBundle] URLForResource:@"magazine" withExtension:@"wtc" subdirectory:@"Assets"];

            self.clientTracker = [self.wikitudeSDK.trackerManager createClientTrackerFromURL:clientTrackerURL extendedTargets:nil andDelegate:self];



and now it shows an error: Property wikitudeSDK not found on object of type ViewController

1 Comment

Hi Viktorija,

You need to define the variable 'wikitudeSDK' as Objective-C property in your class. If you have a look at our example application, you find a line similar to the following:

@property (nonatomic, strong) WTWikitudeNativeSDK                           *wikitudeSDK;

After that you would probably get another error of the same type for your tracker variable, so you might want to add also the following.

@property (nonatomicstrong) WTClientTracker                               *clientTracker;

Best regards,


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