iCloud data Error

Question

i want to save NSInteger to iCloud when the view controller is loaded. I've tried save NSInteger data to iCloud, but i fail to do so. I therefore convert it to NSNumber instead. So the problem is when i try to save the NSNumber to iCloud, it fails with an error

Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[ setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key coins cloud.'

here is the code i used

 NSInteger currentValue = [[NSUserDefaults standardUserDefaults]
                             integerForKey:@"coins.demo"];

   NSNumber *currentvalue = [NSNumber numberWithInt:currentValue];

   NSUbiquitousKeyValueStore *cloudStore = [NSUbiquitousKeyValueStore defaultStore];

   [cloudStore setValue:currentvalue forKey:@"coinscloud"];

   [cloudStore synchronize];


   NSNumber *cloudcoins = [cloudStore valueForKey:@"coinscloud"];

   _coinLabel.text = [NSString stringWithFormat:@"%li", (long)]coinscloud];

I will appreciate your help

Answer 1

Use -setObject:forKey: (NSUbiquitousKeyValueStore) instead:

[cloudStore setObject:/* <-- */ currentvalue forKey:@"coinscloud"];

BTW:

NSInteger currentValue = [[NSUserDefaults standardUserDefaults]
                         integerForKey:@"coins.demo"];

Are you really sure that you want to use a key, not key path of coins.demo?