Plist serialisation in Iphone?
<p>I have an IPhone  application in which i am using this code .</p>

<pre><code>NSPropertyListFormat plistFormat;
NSDictionary *payloadDict = [NSPropertyListSerialization 
                       propertyListWithData:subscriptionProduct.receipt 
                                    options:NSPropertyListImmutable 
                                     format:&amp;plistFormat 
                                       error:nil]; 
</code></pre>

<p>where i am getting the subscriptionProduct.receipt  correctly and reciept is an nsdata, which is declared inside the subscriptionProduct class.But after the conversion when i am trying to print payloadDict it is terned to be null.can anybody help me</p>
