RESTKit communication error - objective-c

Question

I am trying to consume an XML web service through RESTKit.
I am able to connect to the service but I am receiving an error back as follows:
error=Error Domain=AFNetworkingErrorDomain Code=-1016 "Expected content type (null), got application/xml"
I have tried setting the content type header as follows but still not getting any change:
AFHTTPClient* client = [[AFHTTPClient alloc] initWithBaseURL:baseURL];
[client setDefaultHeader:#"Content-Type" value:RKMIMETypeXML];
Hopefully somebody can help.
I have included the code I am using to make the request below:
NSURL *baseURL = [NSURL URLWithString:#"http://someaddress/"];
RKObjectManager *objectManager = [RKObjectManager managerWithBaseURL:baseURL];
[objectManager setRequestSerializationMIMEType:RKMIMETypeXML];
[objectManager setAcceptHeaderWithMIMEType:RKMIMETypeXML];
RKObjectMapping *recipeMapping = [RKObjectMapping mappingForClass:[Recipe class]];
[recipeMapping addAttributeMappingsFromDictionary:#{
#"articleid" : #"ArticleId",
#"title" : #"Title",
#"url" : #"URL"
}];
// Register our mappings with the provider using a response descriptor
RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:recipeMapping
pathPattern:nil
keyPath:#"Recipes"
statusCodes:[NSIndexSet indexSetWithIndex:200]];
[objectManager addResponseDescriptor:responseDescriptor];
[objectManager getObjectsAtPath:#"some/path/"
parameters:nil
success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
NSArray *recipes = [mappingResult array];
NSLog(#"Loaded statuses: %#", recipes);
}
failure:^(RKObjectRequestOperation *operation, NSError *error) {
NSLog(#"Hit error: %#", [error localizedDescription]);
}];
The problem is that I am still getting the Expected content type (null), got application/xml error message.
Furthermore, I have made a call to the service URL with via a very quick and easy sample ASIHTTP app and this is successful. I must be missing something fundamental.
Thanks

Answer 1

Like Martin mentioned you don't need to talk to the AFHTTPClient directly as this point.
RKObjectManager* manager = [RKObjectManager managerWithBaseURL:baseURL];
[manager setRequestSerializationMIMEType:#"application/xml"];
[manager setAcceptHeaderWithMIMEType:#"application/xml"];