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Failed to load data set

January 19, 2018 - 1:00am #2

Hi Vuforia,

I am downloading .xml and .dat from server . 

My downloading method is:-

NSString *urlToDownload = @"https://s3.amazonaws.com/uploads.hipchat.com/122799/3164901/O7QFARbEJUbmEbo/shopping.xml";

        NSURL  *url = [NSURL URLWithString:urlToDownload];

        urlData = [NSData dataWithContentsOfURL:url];

        if ( urlData )


            NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

            NSString  *documentsDirectory = [paths objectAtIndex:0];

            NSString  *xmlFilePath = [NSString stringWithFormat:@"%@/%@", documentsDirectory,@"result.xml"];

            NSLog(@"Downloading Started %@",xmlFilePath);

            filePath = [xmlFilePath lastPathComponent];

            //saving is done on main thread

            [urlData writeToFile:filePath atomically:YES];


same for.dat.

I used :-

if (!dataSet->load([dataFile cStringUsingEncoding:NSASCIIStringEncoding], Vuforia::STORAGE_ABSOLUTE)) { }


I get error  "failed to load dataset".


Please help me asap.

Failed to load data set

January 21, 2018 - 9:06pm #1

Hi vuforian's 

I need your help as soon as possible, Because after solve this problem. I want to purchase vuforia for my product.


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