Create a DDXMLElement containing an NSArray

[alessioarsuffi]

Hi everybody,

i'm trying to create a DDXMLElement which contains an nsarray of NSInteger, my code is:

DDXMLElement *type = [DDXMLElement elementWithName:@"type" stringValue:@"news_user_update_categories_subscriptions"];

DDXMLElement *channelId = [DDXMLElement elementWithName:@"news_channel_id" numberValue: [NSNumber numberWithInteger: _newsChannelId]];

DDXMLElement *subscriptionList = [DDXMLElement elementWithName:@"updated_categories_subscriptions_list" children:nil attributes: _categoriesSubscriptions];

when subscriptionList is going to be created, compiler return this error to me:

'NSInvalidArgumentException', reason: '-[__NSCFNumber _hasParent]: unrecognized selector sent to instance, 

i searched on internet but no results found, any help?

[zadr]

The pasted code by itself looks okay, but it also references other instance variables that aren't shown. We can't really guess at whats happening here and come up with a helpful answer.

Try setting an Objective-C exception breakpoint in Xcode, and re-running your code instead?

[alessioarsuffi]

thanks for your answer, debugging through the code showed that the crash is thrown on this line:

DDXMLAssert([attribute _hasParent] == NO, @"Cannot add an attribute with a parent; detach or copy first");

in the class DDXMLElement.m,

searched in internet gave me this results:

http://stackoverflow.com/questions/6048072/xml-element-inserting-error-with-objective-c-garbage-collection-turned-on,

however i'm still facing crash