C++ Builder 10.4 and Tinyxml

Question

Good evening, I try to use tinyxml 2 with my C++ builder IDE. The code is really simple. I only want to parse an existing XML-File. The Code looks like this:

#include "tinyxml2.h"
using namespace tinyxml2;

class myclass
{
  XMLDocument doc_;
}

And now the compiler gives the messages: "reference to XMLDocument is ambiguous"

Any ideas? I don't know how to fix this. Thank you very much for your tipps.