NSXMLParser can't read last XML node

I have a little problem. I implemented NSXMLParser in my application. When I receive data from web service it's valid XML. If 开发者_运维问答I receive for example 20 items (nodes) parser parse only 19 of them. It always parse one element less. Why this is happening?

Just a suggestion.... have a look at TBXML(http://www.tbxml.co.uk/) This is faster and easier..